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Finding the Fourth Proportional to 70,211.76, 96,893.73 and 38,383.62

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Solution

The fourth proportional to 70,211.76, 96,893.73 and 38,383.62 is: 52,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.76 : 96,893.73 = 38,383.62 : x
  2. Step 2: Convert to fraction form
    70,211.76/96,893.73 = 38,383.62/x
  3. Step 3: Cross multiply
    70,211.76x = 96,893.73 × 38,383.62
  4. Step 4: Simplify right side
    70,211.76x = 3,719,132,112.70
  5. Step 5: Solve for x
    x = 3,719,132,112.70/70,211.76
  6. Step 6: Final answer
    x = 52,970.22

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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.