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Finding the Fourth Proportional to 6,459.56, 9,680.08 and 3,680.48

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Solution

The fourth proportional to 6,459.56, 9,680.08 and 3,680.48 is: 5,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.56 : 9,680.08 = 3,680.48 : x
  2. Step 2: Convert to fraction form
    6,459.56/9,680.08 = 3,680.48/x
  3. Step 3: Cross multiply
    6,459.56x = 9,680.08 × 3,680.48
  4. Step 4: Simplify right side
    6,459.56x = 35,627,340.84
  5. Step 5: Solve for x
    x = 35,627,340.84/6,459.56
  6. Step 6: Final answer
    x = 5,515.44

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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.