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Finding the Fourth Proportional to 16,248, 22,423.20 and 9,175.20

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Solution

The fourth proportional to 16,248, 22,423.20 and 9,175.20 is: 12,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,248 : 22,423.20 = 9,175.20 : x
  2. Step 2: Convert to fraction form
    16,248/22,423.20 = 9,175.20/x
  3. Step 3: Cross multiply
    16,248x = 22,423.20 × 9,175.20
  4. Step 4: Simplify right side
    16,248x = 205,737,344.64
  5. Step 5: Solve for x
    x = 205,737,344.64/16,248
  6. Step 6: Final answer
    x = 12,662.32

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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.