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Finding the Fourth Proportional to 59,418.88, 89,121.36 and 23,878.76

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Solution

The fourth proportional to 59,418.88, 89,121.36 and 23,878.76 is: 35,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,418.88 : 89,121.36 = 23,878.76 : x
  2. Step 2: Convert to fraction form
    59,418.88/89,121.36 = 23,878.76/x
  3. Step 3: Cross multiply
    59,418.88x = 89,121.36 × 23,878.76
  4. Step 4: Simplify right side
    59,418.88x = 2,128,107,566.31
  5. Step 5: Solve for x
    x = 2,128,107,566.31/59,418.88
  6. Step 6: Final answer
    x = 35,815.34

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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.