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Finding the Fourth Proportional to 70,679.67, 97,538.36 and 38,848.83

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Solution

The fourth proportional to 70,679.67, 97,538.36 and 38,848.83 is: 53,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,679.67 : 97,538.36 = 38,848.83 : x
  2. Step 2: Convert to fraction form
    70,679.67/97,538.36 = 38,848.83/x
  3. Step 3: Cross multiply
    70,679.67x = 97,538.36 × 38,848.83
  4. Step 4: Simplify right side
    70,679.67x = 3,789,250,971.87
  5. Step 5: Solve for x
    x = 3,789,250,971.87/70,679.67
  6. Step 6: Final answer
    x = 53,611.61

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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.