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Finding the Third Proportional to 7,931.25 and 11,525.63

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Solution

The third proportional to 7,931.25 and 11,525.63 is: 16,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.25 : 11,525.63 = 11,525.63 : x
  2. Step 2: Convert to fraction form
    7,931.25/11,525.63 = 11,525.63/x
  3. Step 3: Cross multiply
    7,931.25x = 11,525.63 × 11,525.63
  4. Step 4: Simplify right side
    7,931.25x = 132,840,031.64
  5. Step 5: Solve for x
    x = 132,840,031.64/7,931.25
  6. Step 6: Final answer
    x = 16,748.94

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.