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Finding the Fourth Proportional to 8,326.40, 12,489.48 and 2,483.04

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Solution

The fourth proportional to 8,326.40, 12,489.48 and 2,483.04 is: 3,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.40 : 12,489.48 = 2,483.04 : x
  2. Step 2: Convert to fraction form
    8,326.40/12,489.48 = 2,483.04/x
  3. Step 3: Cross multiply
    8,326.40x = 12,489.48 × 2,483.04
  4. Step 4: Simplify right side
    8,326.40x = 31,011,878.42
  5. Step 5: Solve for x
    x = 31,011,878.42/8,326.40
  6. Step 6: Final answer
    x = 3,724.52

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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.