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Finding the Fourth Proportional to 8,297.99, 12,417.74 and 5,179.46

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Solution

The fourth proportional to 8,297.99, 12,417.74 and 5,179.46 is: 7,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297.99 : 12,417.74 = 5,179.46 : x
  2. Step 2: Convert to fraction form
    8,297.99/12,417.74 = 5,179.46/x
  3. Step 3: Cross multiply
    8,297.99x = 12,417.74 × 5,179.46
  4. Step 4: Simplify right side
    8,297.99x = 64,317,161.72
  5. Step 5: Solve for x
    x = 64,317,161.72/8,297.99
  6. Step 6: Final answer
    x = 7,750.93

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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.