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Finding the Fourth Proportional to 8,607.69, 12,902.28 and 4,446.57

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Solution

The fourth proportional to 8,607.69, 12,902.28 and 4,446.57 is: 6,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.69 : 12,902.28 = 4,446.57 : x
  2. Step 2: Convert to fraction form
    8,607.69/12,902.28 = 4,446.57/x
  3. Step 3: Cross multiply
    8,607.69x = 12,902.28 × 4,446.57
  4. Step 4: Simplify right side
    8,607.69x = 57,370,891.18
  5. Step 5: Solve for x
    x = 57,370,891.18/8,607.69
  6. Step 6: Final answer
    x = 6,665.07

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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.