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Finding the Fourth Proportional to 12,482.67, 17,196.78 and 8,698.95

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Solution

The fourth proportional to 12,482.67, 17,196.78 and 8,698.95 is: 11,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.67 : 17,196.78 = 8,698.95 : x
  2. Step 2: Convert to fraction form
    12,482.67/17,196.78 = 8,698.95/x
  3. Step 3: Cross multiply
    12,482.67x = 17,196.78 × 8,698.95
  4. Step 4: Simplify right side
    12,482.67x = 149,593,985.90
  5. Step 5: Solve for x
    x = 149,593,985.90/12,482.67
  6. Step 6: Final answer
    x = 11,984.14

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1.5x scale

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.