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Finding the Fourth Proportional to 70,151.60, 96,805.60 and 38,314.35

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Solution

The fourth proportional to 70,151.60, 96,805.60 and 38,314.35 is: 52,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,151.60 : 96,805.60 = 38,314.35 : x
  2. Step 2: Convert to fraction form
    70,151.60/96,805.60 = 38,314.35/x
  3. Step 3: Cross multiply
    70,151.60x = 96,805.60 × 38,314.35
  4. Step 4: Simplify right side
    70,151.60x = 3,709,043,544.57
  5. Step 5: Solve for x
    x = 3,709,043,544.57/70,151.60
  6. Step 6: Final answer
    x = 52,871.83

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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.