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Finding the Fourth Proportional to 71,242.28, 98,241.54 and 47,372.84

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Solution

The fourth proportional to 71,242.28, 98,241.54 and 47,372.84 is: 65,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,242.28 : 98,241.54 = 47,372.84 : x
  2. Step 2: Convert to fraction form
    71,242.28/98,241.54 = 47,372.84/x
  3. Step 3: Cross multiply
    71,242.28x = 98,241.54 × 47,372.84
  4. Step 4: Simplify right side
    71,242.28x = 4,653,980,755.77
  5. Step 5: Solve for x
    x = 4,653,980,755.77/71,242.28
  6. Step 6: Final answer
    x = 65,326.11

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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.