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Finding the Fourth Proportional to 57,397.52, 86,093.91 and 19,966.07

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Solution

The fourth proportional to 57,397.52, 86,093.91 and 19,966.07 is: 29,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,397.52 : 86,093.91 = 19,966.07 : x
  2. Step 2: Convert to fraction form
    57,397.52/86,093.91 = 19,966.07/x
  3. Step 3: Cross multiply
    57,397.52x = 86,093.91 × 19,966.07
  4. Step 4: Simplify right side
    57,397.52x = 1,718,956,603.16
  5. Step 5: Solve for x
    x = 1,718,956,603.16/57,397.52
  6. Step 6: Final answer
    x = 29,948.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.