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Finding the Fourth Proportional to 10,449.80, 15,674.64 and 3,700.39

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Solution

The fourth proportional to 10,449.80, 15,674.64 and 3,700.39 is: 5,550.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.80 : 15,674.64 = 3,700.39 : x
  2. Step 2: Convert to fraction form
    10,449.80/15,674.64 = 3,700.39/x
  3. Step 3: Cross multiply
    10,449.80x = 15,674.64 × 3,700.39
  4. Step 4: Simplify right side
    10,449.80x = 58,002,184.23
  5. Step 5: Solve for x
    x = 58,002,184.23/10,449.80
  6. Step 6: Final answer
    x = 5,550.56

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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.