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Finding the Fourth Proportional to 71,071.82, 98,074.88 and 38,799.99

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Solution

The fourth proportional to 71,071.82, 98,074.88 and 38,799.99 is: 53,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.82 : 98,074.88 = 38,799.99 : x
  2. Step 2: Convert to fraction form
    71,071.82/98,074.88 = 38,799.99/x
  3. Step 3: Cross multiply
    71,071.82x = 98,074.88 × 38,799.99
  4. Step 4: Simplify right side
    71,071.82x = 3,805,304,169.25
  5. Step 5: Solve for x
    x = 3,805,304,169.25/71,071.82
  6. Step 6: Final answer
    x = 53,541.68

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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.