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Finding the Fourth Proportional to 42,610.60, 63,915.90 and 36,049.60

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Solution

The fourth proportional to 42,610.60, 63,915.90 and 36,049.60 is: 54,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610.60 : 63,915.90 = 36,049.60 : x
  2. Step 2: Convert to fraction form
    42,610.60/63,915.90 = 36,049.60/x
  3. Step 3: Cross multiply
    42,610.60x = 63,915.90 × 36,049.60
  4. Step 4: Simplify right side
    42,610.60x = 2,304,142,628.64
  5. Step 5: Solve for x
    x = 2,304,142,628.64/42,610.60
  6. Step 6: Final answer
    x = 54,074.40

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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.