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Finding the Fourth Proportional to 8,624.56, 12,935.76 and 7,173.04

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Solution

The fourth proportional to 8,624.56, 12,935.76 and 7,173.04 is: 10,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.56 : 12,935.76 = 7,173.04 : x
  2. Step 2: Convert to fraction form
    8,624.56/12,935.76 = 7,173.04/x
  3. Step 3: Cross multiply
    8,624.56x = 12,935.76 × 7,173.04
  4. Step 4: Simplify right side
    8,624.56x = 92,788,723.91
  5. Step 5: Solve for x
    x = 92,788,723.91/8,624.56
  6. Step 6: Final answer
    x = 10,758.66

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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.