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Finding the Third Proportional to 522 and 1,267.88

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Solution

The third proportional to 522 and 1,267.88 is: 3,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    522 : 1,267.88 = 1,267.88 : x
  2. Step 2: Convert to fraction form
    522/1,267.88 = 1,267.88/x
  3. Step 3: Cross multiply
    522x = 1,267.88 × 1,267.88
  4. Step 4: Simplify right side
    522x = 1,607,507.02
  5. Step 5: Solve for x
    x = 1,607,507.02/522
  6. Step 6: Final answer
    x = 3,079.52

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.