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Finding the Fourth Proportional to 15,245.20, 22,867.80 and 15,099.40

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Solution

The fourth proportional to 15,245.20, 22,867.80 and 15,099.40 is: 22,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.20 : 22,867.80 = 15,099.40 : x
  2. Step 2: Convert to fraction form
    15,245.20/22,867.80 = 15,099.40/x
  3. Step 3: Cross multiply
    15,245.20x = 22,867.80 × 15,099.40
  4. Step 4: Simplify right side
    15,245.20x = 345,290,059.32
  5. Step 5: Solve for x
    x = 345,290,059.32/15,245.20
  6. Step 6: Final answer
    x = 22,649.10

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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.