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Finding the Fourth Proportional to 61,564.72, 84,948.60 and 36,405.04

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Solution

The fourth proportional to 61,564.72, 84,948.60 and 36,405.04 is: 50,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,564.72 : 84,948.60 = 36,405.04 : x
  2. Step 2: Convert to fraction form
    61,564.72/84,948.60 = 36,405.04/x
  3. Step 3: Cross multiply
    61,564.72x = 84,948.60 × 36,405.04
  4. Step 4: Simplify right side
    61,564.72x = 3,092,557,180.94
  5. Step 5: Solve for x
    x = 3,092,557,180.94/61,564.72
  6. Step 6: Final answer
    x = 50,232.62

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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.