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Finding the Fourth Proportional to 8,326.95, 12,486.78 and 2,482.40

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Solution

The fourth proportional to 8,326.95, 12,486.78 and 2,482.40 is: 3,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.95 : 12,486.78 = 2,482.40 : x
  2. Step 2: Convert to fraction form
    8,326.95/12,486.78 = 2,482.40/x
  3. Step 3: Cross multiply
    8,326.95x = 12,486.78 × 2,482.40
  4. Step 4: Simplify right side
    8,326.95x = 30,997,120.24
  5. Step 5: Solve for x
    x = 30,997,120.24/8,326.95
  6. Step 6: Final answer
    x = 3,722.51

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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.