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Finding the Fourth Proportional to 2,750.68, 4,125.62 and 802.36

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Solution

The fourth proportional to 2,750.68, 4,125.62 and 802.36 is: 1,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.68 : 4,125.62 = 802.36 : x
  2. Step 2: Convert to fraction form
    2,750.68/4,125.62 = 802.36/x
  3. Step 3: Cross multiply
    2,750.68x = 4,125.62 × 802.36
  4. Step 4: Simplify right side
    2,750.68x = 3,310,232.46
  5. Step 5: Solve for x
    x = 3,310,232.46/2,750.68
  6. Step 6: Final answer
    x = 1,203.42

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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.