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Finding the Fourth Proportional to 6,607.32, 9,115.11 and 5,282.88

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Solution

The fourth proportional to 6,607.32, 9,115.11 and 5,282.88 is: 7,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.32 : 9,115.11 = 5,282.88 : x
  2. Step 2: Convert to fraction form
    6,607.32/9,115.11 = 5,282.88/x
  3. Step 3: Cross multiply
    6,607.32x = 9,115.11 × 5,282.88
  4. Step 4: Simplify right side
    6,607.32x = 48,154,032.32
  5. Step 5: Solve for x
    x = 48,154,032.32/6,607.32
  6. Step 6: Final answer
    x = 7,287.98

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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.