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Finding the Fourth Proportional to 61,934.40, 92,914.56 and 20,376

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Solution

The fourth proportional to 61,934.40, 92,914.56 and 20,376 is: 30,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,934.40 : 92,914.56 = 20,376 : x
  2. Step 2: Convert to fraction form
    61,934.40/92,914.56 = 20,376/x
  3. Step 3: Cross multiply
    61,934.40x = 92,914.56 × 20,376
  4. Step 4: Simplify right side
    61,934.40x = 1,893,227,074.56
  5. Step 5: Solve for x
    x = 1,893,227,074.56/61,934.40
  6. Step 6: Final answer
    x = 30,568.26

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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.