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Finding the Fourth Proportional to 8,980.95, 12,392.22 and 5,001.96

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Solution

The fourth proportional to 8,980.95, 12,392.22 and 5,001.96 is: 6,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.95 : 12,392.22 = 5,001.96 : x
  2. Step 2: Convert to fraction form
    8,980.95/12,392.22 = 5,001.96/x
  3. Step 3: Cross multiply
    8,980.95x = 12,392.22 × 5,001.96
  4. Step 4: Simplify right side
    8,980.95x = 61,985,388.75
  5. Step 5: Solve for x
    x = 61,985,388.75/8,980.95
  6. Step 6: Final answer
    x = 6,901.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.