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Finding the Fourth Proportional to 16,616.17, 22,929.40 and 9,445.09

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Solution

The fourth proportional to 16,616.17, 22,929.40 and 9,445.09 is: 13,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.17 : 22,929.40 = 9,445.09 : x
  2. Step 2: Convert to fraction form
    16,616.17/22,929.40 = 9,445.09/x
  3. Step 3: Cross multiply
    16,616.17x = 22,929.40 × 9,445.09
  4. Step 4: Simplify right side
    16,616.17x = 216,570,246.65
  5. Step 5: Solve for x
    x = 216,570,246.65/16,616.17
  6. Step 6: Final answer
    x = 13,033.70

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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.