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Finding the Third Proportional to 1,479 and 1,888.50

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Solution

The third proportional to 1,479 and 1,888.50 is: 2,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479 : 1,888.50 = 1,888.50 : x
  2. Step 2: Convert to fraction form
    1,479/1,888.50 = 1,888.50/x
  3. Step 3: Cross multiply
    1,479x = 1,888.50 × 1,888.50
  4. Step 4: Simplify right side
    1,479x = 3,566,432.25
  5. Step 5: Solve for x
    x = 3,566,432.25/1,479
  6. Step 6: Final answer
    x = 2,411.38

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.