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Finding the Fourth Proportional to 10,591.76, 15,887.64 and 3,666.80

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Solution

The fourth proportional to 10,591.76, 15,887.64 and 3,666.80 is: 5,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,591.76 : 15,887.64 = 3,666.80 : x
  2. Step 2: Convert to fraction form
    10,591.76/15,887.64 = 3,666.80/x
  3. Step 3: Cross multiply
    10,591.76x = 15,887.64 × 3,666.80
  4. Step 4: Simplify right side
    10,591.76x = 58,256,798.35
  5. Step 5: Solve for x
    x = 58,256,798.35/10,591.76
  6. Step 6: Final answer
    x = 5,500.20

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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.