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Finding the Fourth Proportional to 70,147.60, 96,805.92 and 38,319.44

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Solution

The fourth proportional to 70,147.60, 96,805.92 and 38,319.44 is: 52,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,147.60 : 96,805.92 = 38,319.44 : x
  2. Step 2: Convert to fraction form
    70,147.60/96,805.92 = 38,319.44/x
  3. Step 3: Cross multiply
    70,147.60x = 96,805.92 × 38,319.44
  4. Step 4: Simplify right side
    70,147.60x = 3,709,548,643.08
  5. Step 5: Solve for x
    x = 3,709,548,643.08/70,147.60
  6. Step 6: Final answer
    x = 52,882.05

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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.