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Finding the Fourth Proportional to 2,750.69, 4,125.97 and 802.91

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Solution

The fourth proportional to 2,750.69, 4,125.97 and 802.91 is: 1,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.69 : 4,125.97 = 802.91 : x
  2. Step 2: Convert to fraction form
    2,750.69/4,125.97 = 802.91/x
  3. Step 3: Cross multiply
    2,750.69x = 4,125.97 × 802.91
  4. Step 4: Simplify right side
    2,750.69x = 3,312,793.89
  5. Step 5: Solve for x
    x = 3,312,793.89/2,750.69
  6. Step 6: Final answer
    x = 1,204.35

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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.