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Finding the Fourth Proportional to 70,203.75, 96,881.13 and 38,372.64

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Solution

The fourth proportional to 70,203.75, 96,881.13 and 38,372.64 is: 52,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,203.75 : 96,881.13 = 38,372.64 : x
  2. Step 2: Convert to fraction form
    70,203.75/96,881.13 = 38,372.64/x
  3. Step 3: Cross multiply
    70,203.75x = 96,881.13 × 38,372.64
  4. Step 4: Simplify right side
    70,203.75x = 3,717,584,724.28
  5. Step 5: Solve for x
    x = 3,717,584,724.28/70,203.75
  6. Step 6: Final answer
    x = 52,954.22

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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.