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Finding the Fourth Proportional to 27,305.60, 40,951.20 and 8,585.60

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Solution

The fourth proportional to 27,305.60, 40,951.20 and 8,585.60 is: 12,876.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,305.60 : 40,951.20 = 8,585.60 : x
  2. Step 2: Convert to fraction form
    27,305.60/40,951.20 = 8,585.60/x
  3. Step 3: Cross multiply
    27,305.60x = 40,951.20 × 8,585.60
  4. Step 4: Simplify right side
    27,305.60x = 351,590,622.72
  5. Step 5: Solve for x
    x = 351,590,622.72/27,305.60
  6. Step 6: Final answer
    x = 12,876.14

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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.