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Finding the Fourth Proportional to 65,208.98, 89,988.76 and 38,352.62

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Solution

The fourth proportional to 65,208.98, 89,988.76 and 38,352.62 is: 52,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,208.98 : 89,988.76 = 38,352.62 : x
  2. Step 2: Convert to fraction form
    65,208.98/89,988.76 = 38,352.62/x
  3. Step 3: Cross multiply
    65,208.98x = 89,988.76 × 38,352.62
  4. Step 4: Simplify right side
    65,208.98x = 3,451,304,716.55
  5. Step 5: Solve for x
    x = 3,451,304,716.55/65,208.98
  6. Step 6: Final answer
    x = 52,926.83

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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.