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Finding the Fourth Proportional to 61,866.48, 85,377.28 and 33,572.10

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Solution

The fourth proportional to 61,866.48, 85,377.28 and 33,572.10 is: 46,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.48 : 85,377.28 = 33,572.10 : x
  2. Step 2: Convert to fraction form
    61,866.48/85,377.28 = 33,572.10/x
  3. Step 3: Cross multiply
    61,866.48x = 85,377.28 × 33,572.10
  4. Step 4: Simplify right side
    61,866.48x = 2,866,294,581.89
  5. Step 5: Solve for x
    x = 2,866,294,581.89/61,866.48
  6. Step 6: Final answer
    x = 46,330.33

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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.