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Finding the Third Proportional to 527 and 869.50

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Solution

The third proportional to 527 and 869.50 is: 1,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    527 : 869.50 = 869.50 : x
  2. Step 2: Convert to fraction form
    527/869.50 = 869.50/x
  3. Step 3: Cross multiply
    527x = 869.50 × 869.50
  4. Step 4: Simplify right side
    527x = 756,030.25
  5. Step 5: Solve for x
    x = 756,030.25/527
  6. Step 6: Final answer
    x = 1,434.59

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.