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Finding the Fourth Proportional to 21,627.78, 32,440.05 and 6,046.62

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Solution

The fourth proportional to 21,627.78, 32,440.05 and 6,046.62 is: 9,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.78 : 32,440.05 = 6,046.62 : x
  2. Step 2: Convert to fraction form
    21,627.78/32,440.05 = 6,046.62/x
  3. Step 3: Cross multiply
    21,627.78x = 32,440.05 × 6,046.62
  4. Step 4: Simplify right side
    21,627.78x = 196,152,655.13
  5. Step 5: Solve for x
    x = 196,152,655.13/21,627.78
  6. Step 6: Final answer
    x = 9,069.48

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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.