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Finding the Fourth Proportional to 70,151.55, 96,811.22 and 38,320.97

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Solution

The fourth proportional to 70,151.55, 96,811.22 and 38,320.97 is: 52,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,151.55 : 96,811.22 = 38,320.97 : x
  2. Step 2: Convert to fraction form
    70,151.55/96,811.22 = 38,320.97/x
  3. Step 3: Cross multiply
    70,151.55x = 96,811.22 × 38,320.97
  4. Step 4: Simplify right side
    70,151.55x = 3,709,899,665.68
  5. Step 5: Solve for x
    x = 3,709,899,665.68/70,151.55
  6. Step 6: Final answer
    x = 52,884.07

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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.