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Finding the Fourth Proportional to 26,882.80, 40,324.20 and 7,164.40

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Solution

The fourth proportional to 26,882.80, 40,324.20 and 7,164.40 is: 10,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,882.80 : 40,324.20 = 7,164.40 : x
  2. Step 2: Convert to fraction form
    26,882.80/40,324.20 = 7,164.40/x
  3. Step 3: Cross multiply
    26,882.80x = 40,324.20 × 7,164.40
  4. Step 4: Simplify right side
    26,882.80x = 288,898,698.48
  5. Step 5: Solve for x
    x = 288,898,698.48/26,882.80
  6. Step 6: Final answer
    x = 10,746.60

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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.