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Finding the Fourth Proportional to 18,357.97, 27,518.01 and 7,260.16

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Solution

The fourth proportional to 18,357.97, 27,518.01 and 7,260.16 is: 10,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.97 : 27,518.01 = 7,260.16 : x
  2. Step 2: Convert to fraction form
    18,357.97/27,518.01 = 7,260.16/x
  3. Step 3: Cross multiply
    18,357.97x = 27,518.01 × 7,260.16
  4. Step 4: Simplify right side
    18,357.97x = 199,785,155.48
  5. Step 5: Solve for x
    x = 199,785,155.48/18,357.97
  6. Step 6: Final answer
    x = 10,882.75

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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.