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Finding the Fourth Proportional to 16,220.16, 24,215.04 and 15,644.16

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Solution

The fourth proportional to 16,220.16, 24,215.04 and 15,644.16 is: 23,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.16 : 24,215.04 = 15,644.16 : x
  2. Step 2: Convert to fraction form
    16,220.16/24,215.04 = 15,644.16/x
  3. Step 3: Cross multiply
    16,220.16x = 24,215.04 × 15,644.16
  4. Step 4: Simplify right side
    16,220.16x = 378,823,960.17
  5. Step 5: Solve for x
    x = 378,823,960.17/16,220.16
  6. Step 6: Final answer
    x = 23,355.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.