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Finding the Fourth Proportional to 7,180.60, 10,746.60 and 6,305.80

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Solution

The fourth proportional to 7,180.60, 10,746.60 and 6,305.80 is: 9,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.60 : 10,746.60 = 6,305.80 : x
  2. Step 2: Convert to fraction form
    7,180.60/10,746.60 = 6,305.80/x
  3. Step 3: Cross multiply
    7,180.60x = 10,746.60 × 6,305.80
  4. Step 4: Simplify right side
    7,180.60x = 67,765,910.28
  5. Step 5: Solve for x
    x = 67,765,910.28/7,180.60
  6. Step 6: Final answer
    x = 9,437.36

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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.