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Finding the Fourth Proportional to 70,561.98, 105,867.27 and 35,472.78

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Solution

The fourth proportional to 70,561.98, 105,867.27 and 35,472.78 is: 53,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,561.98 : 105,867.27 = 35,472.78 : x
  2. Step 2: Convert to fraction form
    70,561.98/105,867.27 = 35,472.78/x
  3. Step 3: Cross multiply
    70,561.98x = 105,867.27 × 35,472.78
  4. Step 4: Simplify right side
    70,561.98x = 3,755,406,377.91
  5. Step 5: Solve for x
    x = 3,755,406,377.91/70,561.98
  6. Step 6: Final answer
    x = 53,221.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.