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Finding the Fourth Proportional to 61,564.60, 92,361.17 and 19,448.86

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Solution

The fourth proportional to 61,564.60, 92,361.17 and 19,448.86 is: 29,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,564.60 : 92,361.17 = 19,448.86 : x
  2. Step 2: Convert to fraction form
    61,564.60/92,361.17 = 19,448.86/x
  3. Step 3: Cross multiply
    61,564.60x = 92,361.17 × 19,448.86
  4. Step 4: Simplify right side
    61,564.60x = 1,796,319,367.52
  5. Step 5: Solve for x
    x = 1,796,319,367.52/61,564.60
  6. Step 6: Final answer
    x = 29,177.80

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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.