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Finding the Fourth Proportional to 71,002.62, 98,042.58 and 63,435.60

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Solution

The fourth proportional to 71,002.62, 98,042.58 and 63,435.60 is: 87,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,002.62 : 98,042.58 = 63,435.60 : x
  2. Step 2: Convert to fraction form
    71,002.62/98,042.58 = 63,435.60/x
  3. Step 3: Cross multiply
    71,002.62x = 98,042.58 × 63,435.60
  4. Step 4: Simplify right side
    71,002.62x = 6,219,389,887.85
  5. Step 5: Solve for x
    x = 6,219,389,887.85/71,002.62
  6. Step 6: Final answer
    x = 87,593.81

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1.5x scale

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.