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Finding the Fourth Proportional to 5,192.79, 7,788.11 and 1,495.28

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Solution

The fourth proportional to 5,192.79, 7,788.11 and 1,495.28 is: 2,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.79 : 7,788.11 = 1,495.28 : x
  2. Step 2: Convert to fraction form
    5,192.79/7,788.11 = 1,495.28/x
  3. Step 3: Cross multiply
    5,192.79x = 7,788.11 × 1,495.28
  4. Step 4: Simplify right side
    5,192.79x = 11,645,358.70
  5. Step 5: Solve for x
    x = 11,645,358.70/5,192.79
  6. Step 6: Final answer
    x = 2,242.60

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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.