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Finding the Fourth Proportional to 6,728.76, 10,077.48 and 6,495.16

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Solution

The fourth proportional to 6,728.76, 10,077.48 and 6,495.16 is: 9,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.76 : 10,077.48 = 6,495.16 : x
  2. Step 2: Convert to fraction form
    6,728.76/10,077.48 = 6,495.16/x
  3. Step 3: Cross multiply
    6,728.76x = 10,077.48 × 6,495.16
  4. Step 4: Simplify right side
    6,728.76x = 65,454,845.00
  5. Step 5: Solve for x
    x = 65,454,845.00/6,728.76
  6. Step 6: Final answer
    x = 9,727.63

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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.