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Finding the Fourth Proportional to 7,880.67, 11,825.73 and 7,073.91

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Solution

The fourth proportional to 7,880.67, 11,825.73 and 7,073.91 is: 10,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.67 : 11,825.73 = 7,073.91 : x
  2. Step 2: Convert to fraction form
    7,880.67/11,825.73 = 7,073.91/x
  3. Step 3: Cross multiply
    7,880.67x = 11,825.73 × 7,073.91
  4. Step 4: Simplify right side
    7,880.67x = 83,654,149.70
  5. Step 5: Solve for x
    x = 83,654,149.70/7,880.67
  6. Step 6: Final answer
    x = 10,615.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.