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Finding the Fourth Proportional to 42,466.44, 63,700.60 and 15,447.88

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Solution

The fourth proportional to 42,466.44, 63,700.60 and 15,447.88 is: 23,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,466.44 : 63,700.60 = 15,447.88 : x
  2. Step 2: Convert to fraction form
    42,466.44/63,700.60 = 15,447.88/x
  3. Step 3: Cross multiply
    42,466.44x = 63,700.60 × 15,447.88
  4. Step 4: Simplify right side
    42,466.44x = 984,039,224.73
  5. Step 5: Solve for x
    x = 984,039,224.73/42,466.44
  6. Step 6: Final answer
    x = 23,172.16

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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.