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Finding the Fourth Proportional to 27,287.70, 40,906.80 and 9,753.45

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Solution

The fourth proportional to 27,287.70, 40,906.80 and 9,753.45 is: 14,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,287.70 : 40,906.80 = 9,753.45 : x
  2. Step 2: Convert to fraction form
    27,287.70/40,906.80 = 9,753.45/x
  3. Step 3: Cross multiply
    27,287.70x = 40,906.80 × 9,753.45
  4. Step 4: Simplify right side
    27,287.70x = 398,982,428.46
  5. Step 5: Solve for x
    x = 398,982,428.46/27,287.70
  6. Step 6: Final answer
    x = 14,621.33

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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.