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Finding the Fourth Proportional to 57,423, 79,248.78 and 32,272.68

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Solution

The fourth proportional to 57,423, 79,248.78 and 32,272.68 is: 44,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,423 : 79,248.78 = 32,272.68 : x
  2. Step 2: Convert to fraction form
    57,423/79,248.78 = 32,272.68/x
  3. Step 3: Cross multiply
    57,423x = 79,248.78 × 32,272.68
  4. Step 4: Simplify right side
    57,423x = 2,557,570,517.33
  5. Step 5: Solve for x
    x = 2,557,570,517.33/57,423
  6. Step 6: Final answer
    x = 44,539.13

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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.