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Finding the Fourth Proportional to 39,753.53, 54,859.24 and 21,848.14

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Solution

The fourth proportional to 39,753.53, 54,859.24 and 21,848.14 is: 30,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.53 : 54,859.24 = 21,848.14 : x
  2. Step 2: Convert to fraction form
    39,753.53/54,859.24 = 21,848.14/x
  3. Step 3: Cross multiply
    39,753.53x = 54,859.24 × 21,848.14
  4. Step 4: Simplify right side
    39,753.53x = 1,198,572,355.81
  5. Step 5: Solve for x
    x = 1,198,572,355.81/39,753.53
  6. Step 6: Final answer
    x = 30,150.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.