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Finding the Fourth Proportional to 8,675.13, 12,949.96 and 7,624.24

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Solution

The fourth proportional to 8,675.13, 12,949.96 and 7,624.24 is: 11,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.13 : 12,949.96 = 7,624.24 : x
  2. Step 2: Convert to fraction form
    8,675.13/12,949.96 = 7,624.24/x
  3. Step 3: Cross multiply
    8,675.13x = 12,949.96 × 7,624.24
  4. Step 4: Simplify right side
    8,675.13x = 98,733,638.73
  5. Step 5: Solve for x
    x = 98,733,638.73/8,675.13
  6. Step 6: Final answer
    x = 11,381.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.