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Finding the Fourth Proportional to 68,048.19, 93,906.50 and 38,240.19

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Solution

The fourth proportional to 68,048.19, 93,906.50 and 38,240.19 is: 52,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.19 : 93,906.50 = 38,240.19 : x
  2. Step 2: Convert to fraction form
    68,048.19/93,906.50 = 38,240.19/x
  3. Step 3: Cross multiply
    68,048.19x = 93,906.50 × 38,240.19
  4. Step 4: Simplify right side
    68,048.19x = 3,591,002,402.24
  5. Step 5: Solve for x
    x = 3,591,002,402.24/68,048.19
  6. Step 6: Final answer
    x = 52,771.46

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Double scale
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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.