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Finding the Fourth Proportional to 71,589.74, 98,867.34 and 53,656.34

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Solution

The fourth proportional to 71,589.74, 98,867.34 and 53,656.34 is: 74,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,589.74 : 98,867.34 = 53,656.34 : x
  2. Step 2: Convert to fraction form
    71,589.74/98,867.34 = 53,656.34/x
  3. Step 3: Cross multiply
    71,589.74x = 98,867.34 × 53,656.34
  4. Step 4: Simplify right side
    71,589.74x = 5,304,859,115.60
  5. Step 5: Solve for x
    x = 5,304,859,115.60/71,589.74
  6. Step 6: Final answer
    x = 74,100.83

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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.