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Finding the Fourth Proportional to 48,644.79, 72,930.72 and 20,597.73

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Solution

The fourth proportional to 48,644.79, 72,930.72 and 20,597.73 is: 30,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,644.79 : 72,930.72 = 20,597.73 : x
  2. Step 2: Convert to fraction form
    48,644.79/72,930.72 = 20,597.73/x
  3. Step 3: Cross multiply
    48,644.79x = 72,930.72 × 20,597.73
  4. Step 4: Simplify right side
    48,644.79x = 1,502,207,279.27
  5. Step 5: Solve for x
    x = 1,502,207,279.27/48,644.79
  6. Step 6: Final answer
    x = 30,881.15

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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.