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Finding the Fourth Proportional to 6,631.66, 9,928.32 and 5,713.12

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Solution

The fourth proportional to 6,631.66, 9,928.32 and 5,713.12 is: 8,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.66 : 9,928.32 = 5,713.12 : x
  2. Step 2: Convert to fraction form
    6,631.66/9,928.32 = 5,713.12/x
  3. Step 3: Cross multiply
    6,631.66x = 9,928.32 × 5,713.12
  4. Step 4: Simplify right side
    6,631.66x = 56,721,683.56
  5. Step 5: Solve for x
    x = 56,721,683.56/6,631.66
  6. Step 6: Final answer
    x = 8,553.17

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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.