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Finding the Fourth Proportional to 8,624.96, 12,937.44 and 6,885.44

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Solution

The fourth proportional to 8,624.96, 12,937.44 and 6,885.44 is: 10,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.96 : 12,937.44 = 6,885.44 : x
  2. Step 2: Convert to fraction form
    8,624.96/12,937.44 = 6,885.44/x
  3. Step 3: Cross multiply
    8,624.96x = 12,937.44 × 6,885.44
  4. Step 4: Simplify right side
    8,624.96x = 89,079,966.87
  5. Step 5: Solve for x
    x = 89,079,966.87/8,624.96
  6. Step 6: Final answer
    x = 10,328.16

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1.5x scale

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.