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Finding the Fourth Proportional to 54,583, 81,874.48 and 15,140.12

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Solution

The fourth proportional to 54,583, 81,874.48 and 15,140.12 is: 22,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,583 : 81,874.48 = 15,140.12 : x
  2. Step 2: Convert to fraction form
    54,583/81,874.48 = 15,140.12/x
  3. Step 3: Cross multiply
    54,583x = 81,874.48 × 15,140.12
  4. Step 4: Simplify right side
    54,583x = 1,239,589,452.14
  5. Step 5: Solve for x
    x = 1,239,589,452.14/54,583
  6. Step 6: Final answer
    x = 22,710.17

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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.