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Finding the Fourth Proportional to 4,949.76, 7,424.64 and 2,351.28

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Solution

The fourth proportional to 4,949.76, 7,424.64 and 2,351.28 is: 3,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.76 : 7,424.64 = 2,351.28 : x
  2. Step 2: Convert to fraction form
    4,949.76/7,424.64 = 2,351.28/x
  3. Step 3: Cross multiply
    4,949.76x = 7,424.64 × 2,351.28
  4. Step 4: Simplify right side
    4,949.76x = 17,457,407.54
  5. Step 5: Solve for x
    x = 17,457,407.54/4,949.76
  6. Step 6: Final answer
    x = 3,526.92

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Similar ratio
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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.