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Finding the Fourth Proportional to 57,381.95, 86,072.75 and 15,262

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Solution

The fourth proportional to 57,381.95, 86,072.75 and 15,262 is: 22,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.95 : 86,072.75 = 15,262 : x
  2. Step 2: Convert to fraction form
    57,381.95/86,072.75 = 15,262/x
  3. Step 3: Cross multiply
    57,381.95x = 86,072.75 × 15,262
  4. Step 4: Simplify right side
    57,381.95x = 1,313,642,310.50
  5. Step 5: Solve for x
    x = 1,313,642,310.50/57,381.95
  6. Step 6: Final answer
    x = 22,892.95

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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.