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Finding the Fourth Proportional to 18,923.15, 26,113.01 and 10,967.96

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Solution

The fourth proportional to 18,923.15, 26,113.01 and 10,967.96 is: 15,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.15 : 26,113.01 = 10,967.96 : x
  2. Step 2: Convert to fraction form
    18,923.15/26,113.01 = 10,967.96/x
  3. Step 3: Cross multiply
    18,923.15x = 26,113.01 × 10,967.96
  4. Step 4: Simplify right side
    18,923.15x = 286,406,263.75
  5. Step 5: Solve for x
    x = 286,406,263.75/18,923.15
  6. Step 6: Final answer
    x = 15,135.24

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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.