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Finding the Fourth Proportional to 59,680.32, 89,526.32 and 21,739.90

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Solution

The fourth proportional to 59,680.32, 89,526.32 and 21,739.90 is: 32,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,680.32 : 89,526.32 = 21,739.90 : x
  2. Step 2: Convert to fraction form
    59,680.32/89,526.32 = 21,739.90/x
  3. Step 3: Cross multiply
    59,680.32x = 89,526.32 × 21,739.90
  4. Step 4: Simplify right side
    59,680.32x = 1,946,293,074.70
  5. Step 5: Solve for x
    x = 1,946,293,074.70/59,680.32
  6. Step 6: Final answer
    x = 32,611.97

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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.