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Finding the Fourth Proportional to 27,275.52, 40,913.74 and 8,555.11

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Solution

The fourth proportional to 27,275.52, 40,913.74 and 8,555.11 is: 12,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,275.52 : 40,913.74 = 8,555.11 : x
  2. Step 2: Convert to fraction form
    27,275.52/40,913.74 = 8,555.11/x
  3. Step 3: Cross multiply
    27,275.52x = 40,913.74 × 8,555.11
  4. Step 4: Simplify right side
    27,275.52x = 350,021,546.21
  5. Step 5: Solve for x
    x = 350,021,546.21/27,275.52
  6. Step 6: Final answer
    x = 12,832.81

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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.