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Finding the Fourth Proportional to 20,463.60, 30,695.58 and 7,306.77

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Solution

The fourth proportional to 20,463.60, 30,695.58 and 7,306.77 is: 10,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.60 : 30,695.58 = 7,306.77 : x
  2. Step 2: Convert to fraction form
    20,463.60/30,695.58 = 7,306.77/x
  3. Step 3: Cross multiply
    20,463.60x = 30,695.58 × 7,306.77
  4. Step 4: Simplify right side
    20,463.60x = 224,285,543.08
  5. Step 5: Solve for x
    x = 224,285,543.08/20,463.60
  6. Step 6: Final answer
    x = 10,960.22

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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.