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Finding the Fourth Proportional to 59,953.70, 89,930.55 and 20,504.90

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Solution

The fourth proportional to 59,953.70, 89,930.55 and 20,504.90 is: 30,757.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,953.70 : 89,930.55 = 20,504.90 : x
  2. Step 2: Convert to fraction form
    59,953.70/89,930.55 = 20,504.90/x
  3. Step 3: Cross multiply
    59,953.70x = 89,930.55 × 20,504.90
  4. Step 4: Simplify right side
    59,953.70x = 1,844,016,934.70
  5. Step 5: Solve for x
    x = 1,844,016,934.70/59,953.70
  6. Step 6: Final answer
    x = 30,757.35

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Similar ratio
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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.