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Finding the Fourth Proportional to 16,590.97, 22,895.54 and 9,138.97

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Solution

The fourth proportional to 16,590.97, 22,895.54 and 9,138.97 is: 12,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,590.97 : 22,895.54 = 9,138.97 : x
  2. Step 2: Convert to fraction form
    16,590.97/22,895.54 = 9,138.97/x
  3. Step 3: Cross multiply
    16,590.97x = 22,895.54 × 9,138.97
  4. Step 4: Simplify right side
    16,590.97x = 209,241,653.19
  5. Step 5: Solve for x
    x = 209,241,653.19/16,590.97
  6. Step 6: Final answer
    x = 12,611.78

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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.