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Finding the Third Proportional to 1,582 and 2,792

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Solution

The third proportional to 1,582 and 2,792 is: 4,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582 : 2,792 = 2,792 : x
  2. Step 2: Convert to fraction form
    1,582/2,792 = 2,792/x
  3. Step 3: Cross multiply
    1,582x = 2,792 × 2,792
  4. Step 4: Simplify right side
    1,582x = 7,795,264
  5. Step 5: Solve for x
    x = 7,795,264/1,582
  6. Step 6: Final answer
    x = 4,927.47

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.