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Finding the Fourth Proportional to 71,484.52, 98,647.94 and 39,652.60

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Solution

The fourth proportional to 71,484.52, 98,647.94 and 39,652.60 is: 54,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,484.52 : 98,647.94 = 39,652.60 : x
  2. Step 2: Convert to fraction form
    71,484.52/98,647.94 = 39,652.60/x
  3. Step 3: Cross multiply
    71,484.52x = 98,647.94 × 39,652.60
  4. Step 4: Simplify right side
    71,484.52x = 3,911,647,305.64
  5. Step 5: Solve for x
    x = 3,911,647,305.64/71,484.52
  6. Step 6: Final answer
    x = 54,720.20

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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.