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Finding the Fourth Proportional to 8,866.46, 12,229.66 and 6,472.23

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Solution

The fourth proportional to 8,866.46, 12,229.66 and 6,472.23 is: 8,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.46 : 12,229.66 = 6,472.23 : x
  2. Step 2: Convert to fraction form
    8,866.46/12,229.66 = 6,472.23/x
  3. Step 3: Cross multiply
    8,866.46x = 12,229.66 × 6,472.23
  4. Step 4: Simplify right side
    8,866.46x = 79,153,150.76
  5. Step 5: Solve for x
    x = 79,153,150.76/8,866.46
  6. Step 6: Final answer
    x = 8,927.25

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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.