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Finding the Fourth Proportional to 16,239.87, 22,411.02 and 9,166.74

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Solution

The fourth proportional to 16,239.87, 22,411.02 and 9,166.74 is: 12,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.87 : 22,411.02 = 9,166.74 : x
  2. Step 2: Convert to fraction form
    16,239.87/22,411.02 = 9,166.74/x
  3. Step 3: Cross multiply
    16,239.87x = 22,411.02 × 9,166.74
  4. Step 4: Simplify right side
    16,239.87x = 205,436,068.45
  5. Step 5: Solve for x
    x = 205,436,068.45/16,239.87
  6. Step 6: Final answer
    x = 12,650.11

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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.