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Finding the Fourth Proportional to 71,026.64, 98,025.80 and 42,747.60

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Solution

The fourth proportional to 71,026.64, 98,025.80 and 42,747.60 is: 58,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,026.64 : 98,025.80 = 42,747.60 : x
  2. Step 2: Convert to fraction form
    71,026.64/98,025.80 = 42,747.60/x
  3. Step 3: Cross multiply
    71,026.64x = 98,025.80 × 42,747.60
  4. Step 4: Simplify right side
    71,026.64x = 4,190,367,688.08
  5. Step 5: Solve for x
    x = 4,190,367,688.08/71,026.64
  6. Step 6: Final answer
    x = 58,997.13

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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.