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Finding the Third Proportional to 522 and 988

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Solution

The third proportional to 522 and 988 is: 1,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    522 : 988 = 988 : x
  2. Step 2: Convert to fraction form
    522/988 = 988/x
  3. Step 3: Cross multiply
    522x = 988 × 988
  4. Step 4: Simplify right side
    522x = 976,144
  5. Step 5: Solve for x
    x = 976,144/522
  6. Step 6: Final answer
    x = 1,870.01

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.