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Finding the Fourth Proportional to 5,856.78, 8,763.54 and 3,518.19

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Solution

The fourth proportional to 5,856.78, 8,763.54 and 3,518.19 is: 5,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.78 : 8,763.54 = 3,518.19 : x
  2. Step 2: Convert to fraction form
    5,856.78/8,763.54 = 3,518.19/x
  3. Step 3: Cross multiply
    5,856.78x = 8,763.54 × 3,518.19
  4. Step 4: Simplify right side
    5,856.78x = 30,831,798.79
  5. Step 5: Solve for x
    x = 30,831,798.79/5,856.78
  6. Step 6: Final answer
    x = 5,264.29

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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.