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Finding the Fourth Proportional to 66,009.52, 98,993.44 and 21,626.08

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Solution

The fourth proportional to 66,009.52, 98,993.44 and 21,626.08 is: 32,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.52 : 98,993.44 = 21,626.08 : x
  2. Step 2: Convert to fraction form
    66,009.52/98,993.44 = 21,626.08/x
  3. Step 3: Cross multiply
    66,009.52x = 98,993.44 × 21,626.08
  4. Step 4: Simplify right side
    66,009.52x = 2,140,840,052.92
  5. Step 5: Solve for x
    x = 2,140,840,052.92/66,009.52
  6. Step 6: Final answer
    x = 32,432.29

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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.