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Finding the Fourth Proportional to 8,944.66, 12,349.79 and 5,589.10

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Solution

The fourth proportional to 8,944.66, 12,349.79 and 5,589.10 is: 7,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.66 : 12,349.79 = 5,589.10 : x
  2. Step 2: Convert to fraction form
    8,944.66/12,349.79 = 5,589.10/x
  3. Step 3: Cross multiply
    8,944.66x = 12,349.79 × 5,589.10
  4. Step 4: Simplify right side
    8,944.66x = 69,024,211.29
  5. Step 5: Solve for x
    x = 69,024,211.29/8,944.66
  6. Step 6: Final answer
    x = 7,716.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.