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Finding the Fourth Proportional to 70,351.29, 105,521.00 and 27,657.61

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Solution

The fourth proportional to 70,351.29, 105,521.00 and 27,657.61 is: 41,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.29 : 105,521.00 = 27,657.61 : x
  2. Step 2: Convert to fraction form
    70,351.29/105,521.00 = 27,657.61/x
  3. Step 3: Cross multiply
    70,351.29x = 105,521.00 × 27,657.61
  4. Step 4: Simplify right side
    70,351.29x = 2,918,458,262.72
  5. Step 5: Solve for x
    x = 2,918,458,262.72/70,351.29
  6. Step 6: Final answer
    x = 41,484.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.