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Finding the Fourth Proportional to 25,160.48, 34,721.48 and 13,982.48

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Solution

The fourth proportional to 25,160.48, 34,721.48 and 13,982.48 is: 19,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160.48 : 34,721.48 = 13,982.48 : x
  2. Step 2: Convert to fraction form
    25,160.48/34,721.48 = 13,982.48/x
  3. Step 3: Cross multiply
    25,160.48x = 34,721.48 × 13,982.48
  4. Step 4: Simplify right side
    25,160.48x = 485,492,399.67
  5. Step 5: Solve for x
    x = 485,492,399.67/25,160.48
  6. Step 6: Final answer
    x = 19,295.83

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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.