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Finding the Third Proportional to 7,888.88 and 9,328.88

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Solution

The third proportional to 7,888.88 and 9,328.88 is: 11,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.88 : 9,328.88 = 9,328.88 : x
  2. Step 2: Convert to fraction form
    7,888.88/9,328.88 = 9,328.88/x
  3. Step 3: Cross multiply
    7,888.88x = 9,328.88 × 9,328.88
  4. Step 4: Simplify right side
    7,888.88x = 87,027,908.77
  5. Step 5: Solve for x
    x = 87,027,908.77/7,888.88
  6. Step 6: Final answer
    x = 11,031.73

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.