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Finding the Fourth Proportional to 16,600.40, 22,908.55 and 9,148.40

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Solution

The fourth proportional to 16,600.40, 22,908.55 and 9,148.40 is: 12,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,600.40 : 22,908.55 = 9,148.40 : x
  2. Step 2: Convert to fraction form
    16,600.40/22,908.55 = 9,148.40/x
  3. Step 3: Cross multiply
    16,600.40x = 22,908.55 × 9,148.40
  4. Step 4: Simplify right side
    16,600.40x = 209,576,590.26
  5. Step 5: Solve for x
    x = 209,576,590.26/16,600.40
  6. Step 6: Final answer
    x = 12,624.79

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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.