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Finding the Fourth Proportional to 71,394.70, 98,524.51 and 39,563.83

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Solution

The fourth proportional to 71,394.70, 98,524.51 and 39,563.83 is: 54,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,394.70 : 98,524.51 = 39,563.83 : x
  2. Step 2: Convert to fraction form
    71,394.70/98,524.51 = 39,563.83/x
  3. Step 3: Cross multiply
    71,394.70x = 98,524.51 × 39,563.83
  4. Step 4: Simplify right side
    71,394.70x = 3,898,006,964.47
  5. Step 5: Solve for x
    x = 3,898,006,964.47/71,394.70
  6. Step 6: Final answer
    x = 54,597.99

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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.