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Finding the Fourth Proportional to 71,282.50, 98,387.37 and 42,619.14

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Solution

The fourth proportional to 71,282.50, 98,387.37 and 42,619.14 is: 58,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,282.50 : 98,387.37 = 42,619.14 : x
  2. Step 2: Convert to fraction form
    71,282.50/98,387.37 = 42,619.14/x
  3. Step 3: Cross multiply
    71,282.50x = 98,387.37 × 42,619.14
  4. Step 4: Simplify right side
    71,282.50x = 4,193,185,096.26
  5. Step 5: Solve for x
    x = 4,193,185,096.26/71,282.50
  6. Step 6: Final answer
    x = 58,824.89

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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.