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Finding the Fourth Proportional to 70,759.86, 97,645.06 and 38,927.94

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Solution

The fourth proportional to 70,759.86, 97,645.06 and 38,927.94 is: 53,718.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.86 : 97,645.06 = 38,927.94 : x
  2. Step 2: Convert to fraction form
    70,759.86/97,645.06 = 38,927.94/x
  3. Step 3: Cross multiply
    70,759.86x = 97,645.06 × 38,927.94
  4. Step 4: Simplify right side
    70,759.86x = 3,801,121,036.98
  5. Step 5: Solve for x
    x = 3,801,121,036.98/70,759.86
  6. Step 6: Final answer
    x = 53,718.61

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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.