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Finding the Fourth Proportional to 53,618.88, 80,376.02 and 25,531.39

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Solution

The fourth proportional to 53,618.88, 80,376.02 and 25,531.39 is: 38,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,618.88 : 80,376.02 = 25,531.39 : x
  2. Step 2: Convert to fraction form
    53,618.88/80,376.02 = 25,531.39/x
  3. Step 3: Cross multiply
    53,618.88x = 80,376.02 × 25,531.39
  4. Step 4: Simplify right side
    53,618.88x = 2,052,111,376.16
  5. Step 5: Solve for x
    x = 2,052,111,376.16/53,618.88
  6. Step 6: Final answer
    x = 38,272.18

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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.