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Finding the Fourth Proportional to 69,970, 104,965.52 and 24,987.86

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Solution

The fourth proportional to 69,970, 104,965.52 and 24,987.86 is: 37,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,970 : 104,965.52 = 24,987.86 : x
  2. Step 2: Convert to fraction form
    69,970/104,965.52 = 24,987.86/x
  3. Step 3: Cross multiply
    69,970x = 104,965.52 × 24,987.86
  4. Step 4: Simplify right side
    69,970x = 2,622,863,718.59
  5. Step 5: Solve for x
    x = 2,622,863,718.59/69,970
  6. Step 6: Final answer
    x = 37,485.55

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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.