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Finding the Fourth Proportional to 48,230.70, 72,346.05 and 28,499.10

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Solution

The fourth proportional to 48,230.70, 72,346.05 and 28,499.10 is: 42,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,230.70 : 72,346.05 = 28,499.10 : x
  2. Step 2: Convert to fraction form
    48,230.70/72,346.05 = 28,499.10/x
  3. Step 3: Cross multiply
    48,230.70x = 72,346.05 × 28,499.10
  4. Step 4: Simplify right side
    48,230.70x = 2,061,797,313.56
  5. Step 5: Solve for x
    x = 2,061,797,313.56/48,230.70
  6. Step 6: Final answer
    x = 42,748.65

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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.