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Finding the Fourth Proportional to 12,272.96, 18,411.96 and 3,950.48

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Solution

The fourth proportional to 12,272.96, 18,411.96 and 3,950.48 is: 5,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.96 : 18,411.96 = 3,950.48 : x
  2. Step 2: Convert to fraction form
    12,272.96/18,411.96 = 3,950.48/x
  3. Step 3: Cross multiply
    12,272.96x = 18,411.96 × 3,950.48
  4. Step 4: Simplify right side
    12,272.96x = 72,736,079.74
  5. Step 5: Solve for x
    x = 72,736,079.74/12,272.96
  6. Step 6: Final answer
    x = 5,926.53

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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.