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Finding the Third Proportional to 527.13 and 589.78

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Solution

The third proportional to 527.13 and 589.78 is: 659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.13 : 589.78 = 589.78 : x
  2. Step 2: Convert to fraction form
    527.13/589.78 = 589.78/x
  3. Step 3: Cross multiply
    527.13x = 589.78 × 589.78
  4. Step 4: Simplify right side
    527.13x = 347,841.92
  5. Step 5: Solve for x
    x = 347,841.92/527.13
  6. Step 6: Final answer
    x = 659.88

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.