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Finding the Fourth Proportional to 8,768.96, 13,150.20 and 3,572

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Solution

The fourth proportional to 8,768.96, 13,150.20 and 3,572 is: 5,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.96 : 13,150.20 = 3,572 : x
  2. Step 2: Convert to fraction form
    8,768.96/13,150.20 = 3,572/x
  3. Step 3: Cross multiply
    8,768.96x = 13,150.20 × 3,572
  4. Step 4: Simplify right side
    8,768.96x = 46,972,514.40
  5. Step 5: Solve for x
    x = 46,972,514.40/8,768.96
  6. Step 6: Final answer
    x = 5,356.68

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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.