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Finding the Fourth Proportional to 36,663.60, 55,060.20 and 28,363.80

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Solution

The fourth proportional to 36,663.60, 55,060.20 and 28,363.80 is: 42,595.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,663.60 : 55,060.20 = 28,363.80 : x
  2. Step 2: Convert to fraction form
    36,663.60/55,060.20 = 28,363.80/x
  3. Step 3: Cross multiply
    36,663.60x = 55,060.20 × 28,363.80
  4. Step 4: Simplify right side
    36,663.60x = 1,561,716,500.76
  5. Step 5: Solve for x
    x = 1,561,716,500.76/36,663.60
  6. Step 6: Final answer
    x = 42,595.83

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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.