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Finding the Fourth Proportional to 27,275.19, 40,916.88 and 8,556.90

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Solution

The fourth proportional to 27,275.19, 40,916.88 and 8,556.90 is: 12,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,275.19 : 40,916.88 = 8,556.90 : x
  2. Step 2: Convert to fraction form
    27,275.19/40,916.88 = 8,556.90/x
  3. Step 3: Cross multiply
    27,275.19x = 40,916.88 × 8,556.90
  4. Step 4: Simplify right side
    27,275.19x = 350,121,650.47
  5. Step 5: Solve for x
    x = 350,121,650.47/27,275.19
  6. Step 6: Final answer
    x = 12,836.63

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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.