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Finding the Fourth Proportional to 26,959.92, 40,444.20 and 7,986.48

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Solution

The fourth proportional to 26,959.92, 40,444.20 and 7,986.48 is: 11,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,959.92 : 40,444.20 = 7,986.48 : x
  2. Step 2: Convert to fraction form
    26,959.92/40,444.20 = 7,986.48/x
  3. Step 3: Cross multiply
    26,959.92x = 40,444.20 × 7,986.48
  4. Step 4: Simplify right side
    26,959.92x = 323,006,794.42
  5. Step 5: Solve for x
    x = 323,006,794.42/26,959.92
  6. Step 6: Final answer
    x = 11,981.00

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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.