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Finding the Fourth Proportional to 59,815.68, 89,606.40 and 43,992

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Solution

The fourth proportional to 59,815.68, 89,606.40 and 43,992 is: 65,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,815.68 : 89,606.40 = 43,992 : x
  2. Step 2: Convert to fraction form
    59,815.68/89,606.40 = 43,992/x
  3. Step 3: Cross multiply
    59,815.68x = 89,606.40 × 43,992
  4. Step 4: Simplify right side
    59,815.68x = 3,941,964,748.80
  5. Step 5: Solve for x
    x = 3,941,964,748.80/59,815.68
  6. Step 6: Final answer
    x = 65,901.86

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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.