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Finding the Fourth Proportional to 22,281.92, 30,738.12 and 15,197.12

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Solution

The fourth proportional to 22,281.92, 30,738.12 and 15,197.12 is: 20,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.92 : 30,738.12 = 15,197.12 : x
  2. Step 2: Convert to fraction form
    22,281.92/30,738.12 = 15,197.12/x
  3. Step 3: Cross multiply
    22,281.92x = 30,738.12 × 15,197.12
  4. Step 4: Simplify right side
    22,281.92x = 467,130,898.21
  5. Step 5: Solve for x
    x = 467,130,898.21/22,281.92
  6. Step 6: Final answer
    x = 20,964.57

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.