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Finding the Fourth Proportional to 8,475.66, 12,717 and 4,575.48

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Solution

The fourth proportional to 8,475.66, 12,717 and 4,575.48 is: 6,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.66 : 12,717 = 4,575.48 : x
  2. Step 2: Convert to fraction form
    8,475.66/12,717 = 4,575.48/x
  3. Step 3: Cross multiply
    8,475.66x = 12,717 × 4,575.48
  4. Step 4: Simplify right side
    8,475.66x = 58,186,379.16
  5. Step 5: Solve for x
    x = 58,186,379.16/8,475.66
  6. Step 6: Final answer
    x = 6,865.11

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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.