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Finding the Fourth Proportional to 16,312.76, 22,511.48 and 8,860.76

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Solution

The fourth proportional to 16,312.76, 22,511.48 and 8,860.76 is: 12,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,312.76 : 22,511.48 = 8,860.76 : x
  2. Step 2: Convert to fraction form
    16,312.76/22,511.48 = 8,860.76/x
  3. Step 3: Cross multiply
    16,312.76x = 22,511.48 × 8,860.76
  4. Step 4: Simplify right side
    16,312.76x = 199,468,821.52
  5. Step 5: Solve for x
    x = 199,468,821.52/16,312.76
  6. Step 6: Final answer
    x = 12,227.78

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Half scale
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Double 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.