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Finding the Fourth Proportional to 53,812.84, 80,719.12 and 25,647.52

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Solution

The fourth proportional to 53,812.84, 80,719.12 and 25,647.52 is: 38,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,812.84 : 80,719.12 = 25,647.52 : x
  2. Step 2: Convert to fraction form
    53,812.84/80,719.12 = 25,647.52/x
  3. Step 3: Cross multiply
    53,812.84x = 80,719.12 × 25,647.52
  4. Step 4: Simplify right side
    53,812.84x = 2,070,245,244.58
  5. Step 5: Solve for x
    x = 2,070,245,244.58/53,812.84
  6. Step 6: Final answer
    x = 38,471.21

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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.