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Finding the Fourth Proportional to 8,861.18, 12,228.14 and 4,882.28

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Solution

The fourth proportional to 8,861.18, 12,228.14 and 4,882.28 is: 6,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.18 : 12,228.14 = 4,882.28 : x
  2. Step 2: Convert to fraction form
    8,861.18/12,228.14 = 4,882.28/x
  3. Step 3: Cross multiply
    8,861.18x = 12,228.14 × 4,882.28
  4. Step 4: Simplify right side
    8,861.18x = 59,701,203.36
  5. Step 5: Solve for x
    x = 59,701,203.36/8,861.18
  6. Step 6: Final answer
    x = 6,737.39

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Half scale
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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.