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Finding the Fourth Proportional to 10,968.84, 16,488.94 and 8,801.32

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Solution

The fourth proportional to 10,968.84, 16,488.94 and 8,801.32 is: 13,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.84 : 16,488.94 = 8,801.32 : x
  2. Step 2: Convert to fraction form
    10,968.84/16,488.94 = 8,801.32/x
  3. Step 3: Cross multiply
    10,968.84x = 16,488.94 × 8,801.32
  4. Step 4: Simplify right side
    10,968.84x = 145,124,437.40
  5. Step 5: Solve for x
    x = 145,124,437.40/10,968.84
  6. Step 6: Final answer
    x = 13,230.61

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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.