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Finding the Third Proportional to 7,476.75 and 9,709.88

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Solution

The third proportional to 7,476.75 and 9,709.88 is: 12,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,476.75 : 9,709.88 = 9,709.88 : x
  2. Step 2: Convert to fraction form
    7,476.75/9,709.88 = 9,709.88/x
  3. Step 3: Cross multiply
    7,476.75x = 9,709.88 × 9,709.88
  4. Step 4: Simplify right side
    7,476.75x = 94,281,672.52
  5. Step 5: Solve for x
    x = 94,281,672.52/7,476.75
  6. Step 6: Final answer
    x = 12,609.98

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.