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Finding the Fourth Proportional to 63,509.90, 87,679.52 and 43,395.98

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Solution

The fourth proportional to 63,509.90, 87,679.52 and 43,395.98 is: 59,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,509.90 : 87,679.52 = 43,395.98 : x
  2. Step 2: Convert to fraction form
    63,509.90/87,679.52 = 43,395.98/x
  3. Step 3: Cross multiply
    63,509.90x = 87,679.52 × 43,395.98
  4. Step 4: Simplify right side
    63,509.90x = 3,804,938,696.33
  5. Step 5: Solve for x
    x = 3,804,938,696.33/63,509.90
  6. Step 6: Final answer
    x = 59,910.95

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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.