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Finding the Fourth Proportional to 70,379.22, 97,120.71 and 38,548.38

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Solution

The fourth proportional to 70,379.22, 97,120.71 and 38,548.38 is: 53,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.22 : 97,120.71 = 38,548.38 : x
  2. Step 2: Convert to fraction form
    70,379.22/97,120.71 = 38,548.38/x
  3. Step 3: Cross multiply
    70,379.22x = 97,120.71 × 38,548.38
  4. Step 4: Simplify right side
    70,379.22x = 3,743,846,034.95
  5. Step 5: Solve for x
    x = 3,743,846,034.95/70,379.22
  6. Step 6: Final answer
    x = 53,195.33

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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.