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Finding the Fourth Proportional to 39,638, 59,456.96 and 10,055.76

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Solution

The fourth proportional to 39,638, 59,456.96 and 10,055.76 is: 15,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638 : 59,456.96 = 10,055.76 : x
  2. Step 2: Convert to fraction form
    39,638/59,456.96 = 10,055.76/x
  3. Step 3: Cross multiply
    39,638x = 59,456.96 × 10,055.76
  4. Step 4: Simplify right side
    39,638x = 597,884,920.09
  5. Step 5: Solve for x
    x = 597,884,920.09/39,638
  6. Step 6: Final answer
    x = 15,083.63

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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.