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Finding the Fourth Proportional to 68,048.83, 93,897.11 and 38,972.68

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Solution

The fourth proportional to 68,048.83, 93,897.11 and 38,972.68 is: 53,776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.83 : 93,897.11 = 38,972.68 : x
  2. Step 2: Convert to fraction form
    68,048.83/93,897.11 = 38,972.68/x
  3. Step 3: Cross multiply
    68,048.83x = 93,897.11 × 38,972.68
  4. Step 4: Simplify right side
    68,048.83x = 3,659,422,224.97
  5. Step 5: Solve for x
    x = 3,659,422,224.97/68,048.83
  6. Step 6: Final answer
    x = 53,776.41

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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.