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Finding the Fourth Proportional to 70,647.92, 105,987.47 and 23,277.61

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Solution

The fourth proportional to 70,647.92, 105,987.47 and 23,277.61 is: 34,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.92 : 105,987.47 = 23,277.61 : x
  2. Step 2: Convert to fraction form
    70,647.92/105,987.47 = 23,277.61/x
  3. Step 3: Cross multiply
    70,647.92x = 105,987.47 × 23,277.61
  4. Step 4: Simplify right side
    70,647.92x = 2,467,134,784.77
  5. Step 5: Solve for x
    x = 2,467,134,784.77/70,647.92
  6. Step 6: Final answer
    x = 34,921.55

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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.