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Finding the Fourth Proportional to 27,078.10, 40,616.46 and 7,356.15

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Solution

The fourth proportional to 27,078.10, 40,616.46 and 7,356.15 is: 11,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.10 : 40,616.46 = 7,356.15 : x
  2. Step 2: Convert to fraction form
    27,078.10/40,616.46 = 7,356.15/x
  3. Step 3: Cross multiply
    27,078.10x = 40,616.46 × 7,356.15
  4. Step 4: Simplify right side
    27,078.10x = 298,780,772.23
  5. Step 5: Solve for x
    x = 298,780,772.23/27,078.10
  6. Step 6: Final answer
    x = 11,034.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.