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Finding the Fourth Proportional to 35,013.78, 48,319.07 and 19,906.47

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Solution

The fourth proportional to 35,013.78, 48,319.07 and 19,906.47 is: 27,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,013.78 : 48,319.07 = 19,906.47 : x
  2. Step 2: Convert to fraction form
    35,013.78/48,319.07 = 19,906.47/x
  3. Step 3: Cross multiply
    35,013.78x = 48,319.07 × 19,906.47
  4. Step 4: Simplify right side
    35,013.78x = 961,862,017.85
  5. Step 5: Solve for x
    x = 961,862,017.85/35,013.78
  6. Step 6: Final answer
    x = 27,470.96

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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.