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Finding the Fourth Proportional to 16,239.04, 22,409.84 and 8,787.04

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Solution

The fourth proportional to 16,239.04, 22,409.84 and 8,787.04 is: 12,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.04 : 22,409.84 = 8,787.04 : x
  2. Step 2: Convert to fraction form
    16,239.04/22,409.84 = 8,787.04/x
  3. Step 3: Cross multiply
    16,239.04x = 22,409.84 × 8,787.04
  4. Step 4: Simplify right side
    16,239.04x = 196,916,160.47
  5. Step 5: Solve for x
    x = 196,916,160.47/16,239.04
  6. Step 6: Final answer
    x = 12,126.10

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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.