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Finding the Fourth Proportional to 13,673.71, 20,502.35 and 5,343.79

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Solution

The fourth proportional to 13,673.71, 20,502.35 and 5,343.79 is: 8,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.71 : 20,502.35 = 5,343.79 : x
  2. Step 2: Convert to fraction form
    13,673.71/20,502.35 = 5,343.79/x
  3. Step 3: Cross multiply
    13,673.71x = 20,502.35 × 5,343.79
  4. Step 4: Simplify right side
    13,673.71x = 109,560,252.91
  5. Step 5: Solve for x
    x = 109,560,252.91/13,673.71
  6. Step 6: Final answer
    x = 8,012.48

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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.