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Finding the Fourth Proportional to 18,395.81, 27,593.99 and 5,248.19

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Solution

The fourth proportional to 18,395.81, 27,593.99 and 5,248.19 is: 7,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.81 : 27,593.99 = 5,248.19 : x
  2. Step 2: Convert to fraction form
    18,395.81/27,593.99 = 5,248.19/x
  3. Step 3: Cross multiply
    18,395.81x = 27,593.99 × 5,248.19
  4. Step 4: Simplify right side
    18,395.81x = 144,818,545.12
  5. Step 5: Solve for x
    x = 144,818,545.12/18,395.81
  6. Step 6: Final answer
    x = 7,872.36

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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.