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Finding the Fourth Proportional to 18,151.56, 27,210.33 and 7,065.36

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Solution

The fourth proportional to 18,151.56, 27,210.33 and 7,065.36 is: 10,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.56 : 27,210.33 = 7,065.36 : x
  2. Step 2: Convert to fraction form
    18,151.56/27,210.33 = 7,065.36/x
  3. Step 3: Cross multiply
    18,151.56x = 27,210.33 × 7,065.36
  4. Step 4: Simplify right side
    18,151.56x = 192,250,777.17
  5. Step 5: Solve for x
    x = 192,250,777.17/18,151.56
  6. Step 6: Final answer
    x = 10,591.42

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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.