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Finding the Fourth Proportional to 20,367.70, 30,551.55 and 14,794.90

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Solution

The fourth proportional to 20,367.70, 30,551.55 and 14,794.90 is: 22,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.70 : 30,551.55 = 14,794.90 : x
  2. Step 2: Convert to fraction form
    20,367.70/30,551.55 = 14,794.90/x
  3. Step 3: Cross multiply
    20,367.70x = 30,551.55 × 14,794.90
  4. Step 4: Simplify right side
    20,367.70x = 452,007,127.10
  5. Step 5: Solve for x
    x = 452,007,127.10/20,367.70
  6. Step 6: Final answer
    x = 22,192.35

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Double scale
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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.