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Finding the Fourth Proportional to 4,802.64, 7,201.92 and 1,880.48

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Solution

The fourth proportional to 4,802.64, 7,201.92 and 1,880.48 is: 2,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,802.64 : 7,201.92 = 1,880.48 : x
  2. Step 2: Convert to fraction form
    4,802.64/7,201.92 = 1,880.48/x
  3. Step 3: Cross multiply
    4,802.64x = 7,201.92 × 1,880.48
  4. Step 4: Simplify right side
    4,802.64x = 13,543,066.52
  5. Step 5: Solve for x
    x = 13,543,066.52/4,802.64
  6. Step 6: Final answer
    x = 2,819.92

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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.