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Finding the Fourth Proportional to 9,879.15, 14,822.73 and 4,329.57

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Solution

The fourth proportional to 9,879.15, 14,822.73 and 4,329.57 is: 6,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.15 : 14,822.73 = 4,329.57 : x
  2. Step 2: Convert to fraction form
    9,879.15/14,822.73 = 4,329.57/x
  3. Step 3: Cross multiply
    9,879.15x = 14,822.73 × 4,329.57
  4. Step 4: Simplify right side
    9,879.15x = 64,175,999.25
  5. Step 5: Solve for x
    x = 64,175,999.25/9,879.15
  6. Step 6: Final answer
    x = 6,496.11

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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.