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Finding the Third Proportional to 49,356.50 and 74,479

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Solution

The third proportional to 49,356.50 and 74,479 is: 112,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,356.50 : 74,479 = 74,479 : x
  2. Step 2: Convert to fraction form
    49,356.50/74,479 = 74,479/x
  3. Step 3: Cross multiply
    49,356.50x = 74,479 × 74,479
  4. Step 4: Simplify right side
    49,356.50x = 5,547,121,441
  5. Step 5: Solve for x
    x = 5,547,121,441/49,356.50
  6. Step 6: Final answer
    x = 112,388.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.