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Finding the Fourth Proportional to 8,326.70, 12,483.90 and 5,039.07

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Solution

The fourth proportional to 8,326.70, 12,483.90 and 5,039.07 is: 7,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.70 : 12,483.90 = 5,039.07 : x
  2. Step 2: Convert to fraction form
    8,326.70/12,483.90 = 5,039.07/x
  3. Step 3: Cross multiply
    8,326.70x = 12,483.90 × 5,039.07
  4. Step 4: Simplify right side
    8,326.70x = 62,907,245.97
  5. Step 5: Solve for x
    x = 62,907,245.97/8,326.70
  6. Step 6: Final answer
    x = 7,554.88

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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.