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Finding the Fourth Proportional to 19,460.81, 26,850.98 and 11,904.38

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Solution

The fourth proportional to 19,460.81, 26,850.98 and 11,904.38 is: 16,425.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,460.81 : 26,850.98 = 11,904.38 : x
  2. Step 2: Convert to fraction form
    19,460.81/26,850.98 = 11,904.38/x
  3. Step 3: Cross multiply
    19,460.81x = 26,850.98 × 11,904.38
  4. Step 4: Simplify right side
    19,460.81x = 319,644,209.77
  5. Step 5: Solve for x
    x = 319,644,209.77/19,460.81
  6. Step 6: Final answer
    x = 16,425.02

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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.