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Finding the Third Proportional to 527 and 786.50

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Solution

The third proportional to 527 and 786.50 is: 1,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527 : 786.50 = 786.50 : x
  2. Step 2: Convert to fraction form
    527/786.50 = 786.50/x
  3. Step 3: Cross multiply
    527x = 786.50 × 786.50
  4. Step 4: Simplify right side
    527x = 618,582.25
  5. Step 5: Solve for x
    x = 618,582.25/527
  6. Step 6: Final answer
    x = 1,173.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.