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Finding the Fourth Proportional to 39,147.84, 58,721.04 and 15,773.68

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Solution

The fourth proportional to 39,147.84, 58,721.04 and 15,773.68 is: 23,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.84 : 58,721.04 = 15,773.68 : x
  2. Step 2: Convert to fraction form
    39,147.84/58,721.04 = 15,773.68/x
  3. Step 3: Cross multiply
    39,147.84x = 58,721.04 × 15,773.68
  4. Step 4: Simplify right side
    39,147.84x = 926,246,894.23
  5. Step 5: Solve for x
    x = 926,246,894.23/39,147.84
  6. Step 6: Final answer
    x = 23,660.23

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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.