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Finding the Fourth Proportional to 8,504.40, 11,730.24 and 8,348.88

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Solution

The fourth proportional to 8,504.40, 11,730.24 and 8,348.88 is: 11,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,504.40 : 11,730.24 = 8,348.88 : x
  2. Step 2: Convert to fraction form
    8,504.40/11,730.24 = 8,348.88/x
  3. Step 3: Cross multiply
    8,504.40x = 11,730.24 × 8,348.88
  4. Step 4: Simplify right side
    8,504.40x = 97,934,366.13
  5. Step 5: Solve for x
    x = 97,934,366.13/8,504.40
  6. Step 6: Final answer
    x = 11,515.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.