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Finding the Third Proportional to 2,499 and 2,784

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Solution

The third proportional to 2,499 and 2,784 is: 3,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,499 : 2,784 = 2,784 : x
  2. Step 2: Convert to fraction form
    2,499/2,784 = 2,784/x
  3. Step 3: Cross multiply
    2,499x = 2,784 × 2,784
  4. Step 4: Simplify right side
    2,499x = 7,750,656
  5. Step 5: Solve for x
    x = 7,750,656/2,499
  6. Step 6: Final answer
    x = 3,101.50

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.