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Finding the Fourth Proportional to 37,310.48, 51,482.44 and 21,392

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Solution

The fourth proportional to 37,310.48, 51,482.44 and 21,392 is: 29,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,310.48 : 51,482.44 = 21,392 : x
  2. Step 2: Convert to fraction form
    37,310.48/51,482.44 = 21,392/x
  3. Step 3: Cross multiply
    37,310.48x = 51,482.44 × 21,392
  4. Step 4: Simplify right side
    37,310.48x = 1,101,312,356.48
  5. Step 5: Solve for x
    x = 1,101,312,356.48/37,310.48
  6. Step 6: Final answer
    x = 29,517.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.