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Finding the Fourth Proportional to 70,615.54, 97,451.12 and 38,351.37

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Solution

The fourth proportional to 70,615.54, 97,451.12 and 38,351.37 is: 52,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.54 : 97,451.12 = 38,351.37 : x
  2. Step 2: Convert to fraction form
    70,615.54/97,451.12 = 38,351.37/x
  3. Step 3: Cross multiply
    70,615.54x = 97,451.12 × 38,351.37
  4. Step 4: Simplify right side
    70,615.54x = 3,737,383,768.28
  5. Step 5: Solve for x
    x = 3,737,383,768.28/70,615.54
  6. Step 6: Final answer
    x = 52,925.80

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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.