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Finding the Fourth Proportional to 16,318.17, 22,518.99 and 8,866.17

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Solution

The fourth proportional to 16,318.17, 22,518.99 and 8,866.17 is: 12,235.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,318.17 : 22,518.99 = 8,866.17 : x
  2. Step 2: Convert to fraction form
    16,318.17/22,518.99 = 8,866.17/x
  3. Step 3: Cross multiply
    16,318.17x = 22,518.99 × 8,866.17
  4. Step 4: Simplify right side
    16,318.17x = 199,657,193.57
  5. Step 5: Solve for x
    x = 199,657,193.57/16,318.17
  6. Step 6: Final answer
    x = 12,235.27

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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.