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Finding the Fourth Proportional to 8,491.04, 11,717.68 and 4,765.04

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Solution

The fourth proportional to 8,491.04, 11,717.68 and 4,765.04 is: 6,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.04 : 11,717.68 = 4,765.04 : x
  2. Step 2: Convert to fraction form
    8,491.04/11,717.68 = 4,765.04/x
  3. Step 3: Cross multiply
    8,491.04x = 11,717.68 × 4,765.04
  4. Step 4: Simplify right side
    8,491.04x = 55,835,213.91
  5. Step 5: Solve for x
    x = 55,835,213.91/8,491.04
  6. Step 6: Final answer
    x = 6,575.78

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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.