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Finding the Fourth Proportional to 59,908.44, 89,870.64 and 20,454.96

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Solution

The fourth proportional to 59,908.44, 89,870.64 and 20,454.96 is: 30,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,908.44 : 89,870.64 = 20,454.96 : x
  2. Step 2: Convert to fraction form
    59,908.44/89,870.64 = 20,454.96/x
  3. Step 3: Cross multiply
    59,908.44x = 89,870.64 × 20,454.96
  4. Step 4: Simplify right side
    59,908.44x = 1,838,300,346.37
  5. Step 5: Solve for x
    x = 1,838,300,346.37/59,908.44
  6. Step 6: Final answer
    x = 30,685.16

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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.