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Finding the Fourth Proportional to 19,019.42, 26,245.11 and 10,950.92

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Solution

The fourth proportional to 19,019.42, 26,245.11 and 10,950.92 is: 15,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.42 : 26,245.11 = 10,950.92 : x
  2. Step 2: Convert to fraction form
    19,019.42/26,245.11 = 10,950.92/x
  3. Step 3: Cross multiply
    19,019.42x = 26,245.11 × 10,950.92
  4. Step 4: Simplify right side
    19,019.42x = 287,408,100.00
  5. Step 5: Solve for x
    x = 287,408,100.00/19,019.42
  6. Step 6: Final answer
    x = 15,111.30

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Half scale
Find fourth proportional to 38,038.84, 52,490.22 and 21,901.84
Double scale
Find fourth proportional to 19,020.42, 26,246.49 and 10,951.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.