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Finding the Fourth Proportional to 8,943.68, 12,347.96 and 5,758.17

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Solution

The fourth proportional to 8,943.68, 12,347.96 and 5,758.17 is: 7,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.68 : 12,347.96 = 5,758.17 : x
  2. Step 2: Convert to fraction form
    8,943.68/12,347.96 = 5,758.17/x
  3. Step 3: Cross multiply
    8,943.68x = 12,347.96 × 5,758.17
  4. Step 4: Simplify right side
    8,943.68x = 71,101,624.04
  5. Step 5: Solve for x
    x = 71,101,624.04/8,943.68
  6. Step 6: Final answer
    x = 7,949.93

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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.