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Finding the Fourth Proportional to 5,748.80, 8,623.20 and 5,666.92

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Solution

The fourth proportional to 5,748.80, 8,623.20 and 5,666.92 is: 8,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748.80 : 8,623.20 = 5,666.92 : x
  2. Step 2: Convert to fraction form
    5,748.80/8,623.20 = 5,666.92/x
  3. Step 3: Cross multiply
    5,748.80x = 8,623.20 × 5,666.92
  4. Step 4: Simplify right side
    5,748.80x = 48,866,984.54
  5. Step 5: Solve for x
    x = 48,866,984.54/5,748.80
  6. Step 6: Final answer
    x = 8,500.38

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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.