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Finding the Third Proportional to 7,007.13 and 7,690.57

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Solution

The third proportional to 7,007.13 and 7,690.57 is: 8,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.13 : 7,690.57 = 7,690.57 : x
  2. Step 2: Convert to fraction form
    7,007.13/7,690.57 = 7,690.57/x
  3. Step 3: Cross multiply
    7,007.13x = 7,690.57 × 7,690.57
  4. Step 4: Simplify right side
    7,007.13x = 59,144,871.73
  5. Step 5: Solve for x
    x = 59,144,871.73/7,007.13
  6. Step 6: Final answer
    x = 8,440.67

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.