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Finding the Fourth Proportional to 40,885.71, 61,371.47 and 36,235.47

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Solution

The fourth proportional to 40,885.71, 61,371.47 and 36,235.47 is: 54,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,885.71 : 61,371.47 = 36,235.47 : x
  2. Step 2: Convert to fraction form
    40,885.71/61,371.47 = 36,235.47/x
  3. Step 3: Cross multiply
    40,885.71x = 61,371.47 × 36,235.47
  4. Step 4: Simplify right side
    40,885.71x = 2,223,823,878.86
  5. Step 5: Solve for x
    x = 2,223,823,878.86/40,885.71
  6. Step 6: Final answer
    x = 54,391.23

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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.