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Finding the Fourth Proportional to 70,383.61, 97,129.42 and 38,553.04

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Solution

The fourth proportional to 70,383.61, 97,129.42 and 38,553.04 is: 53,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,383.61 : 97,129.42 = 38,553.04 : x
  2. Step 2: Convert to fraction form
    70,383.61/97,129.42 = 38,553.04/x
  3. Step 3: Cross multiply
    70,383.61x = 97,129.42 × 38,553.04
  4. Step 4: Simplify right side
    70,383.61x = 3,744,634,414.44
  5. Step 5: Solve for x
    x = 3,744,634,414.44/70,383.61
  6. Step 6: Final answer
    x = 53,203.22

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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.