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Finding the Fourth Proportional to 8,879.63, 13,326.66 and 4,498.34

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Solution

The fourth proportional to 8,879.63, 13,326.66 and 4,498.34 is: 6,751.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.63 : 13,326.66 = 4,498.34 : x
  2. Step 2: Convert to fraction form
    8,879.63/13,326.66 = 4,498.34/x
  3. Step 3: Cross multiply
    8,879.63x = 13,326.66 × 4,498.34
  4. Step 4: Simplify right side
    8,879.63x = 59,947,781.11
  5. Step 5: Solve for x
    x = 59,947,781.11/8,879.63
  6. Step 6: Final answer
    x = 6,751.16

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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.