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Finding the Fourth Proportional to 10,988.77, 16,482.88 and 3,197.65

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Solution

The fourth proportional to 10,988.77, 16,482.88 and 3,197.65 is: 4,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.77 : 16,482.88 = 3,197.65 : x
  2. Step 2: Convert to fraction form
    10,988.77/16,482.88 = 3,197.65/x
  3. Step 3: Cross multiply
    10,988.77x = 16,482.88 × 3,197.65
  4. Step 4: Simplify right side
    10,988.77x = 52,706,481.23
  5. Step 5: Solve for x
    x = 52,706,481.23/10,988.77
  6. Step 6: Final answer
    x = 4,796.39

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1.5x scale

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.