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Finding the Fourth Proportional to 57,915.93, 79,919.60 and 32,416.47

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Solution

The fourth proportional to 57,915.93, 79,919.60 and 32,416.47 is: 44,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,915.93 : 79,919.60 = 32,416.47 : x
  2. Step 2: Convert to fraction form
    57,915.93/79,919.60 = 32,416.47/x
  3. Step 3: Cross multiply
    57,915.93x = 79,919.60 × 32,416.47
  4. Step 4: Simplify right side
    57,915.93x = 2,590,711,153.73
  5. Step 5: Solve for x
    x = 2,590,711,153.73/57,915.93
  6. Step 6: Final answer
    x = 44,732.27

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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.