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Finding the Fourth Proportional to 39,885.92, 59,807.88 and 17,689.68

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Solution

The fourth proportional to 39,885.92, 59,807.88 and 17,689.68 is: 26,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,885.92 : 59,807.88 = 17,689.68 : x
  2. Step 2: Convert to fraction form
    39,885.92/59,807.88 = 17,689.68/x
  3. Step 3: Cross multiply
    39,885.92x = 59,807.88 × 17,689.68
  4. Step 4: Simplify right side
    39,885.92x = 1,057,982,258.68
  5. Step 5: Solve for x
    x = 1,057,982,258.68/39,885.92
  6. Step 6: Final answer
    x = 26,525.21

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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.