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Finding the Fourth Proportional to 31,362.99, 47,044.49 and 13,845.12

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Solution

The fourth proportional to 31,362.99, 47,044.49 and 13,845.12 is: 20,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.99 : 47,044.49 = 13,845.12 : x
  2. Step 2: Convert to fraction form
    31,362.99/47,044.49 = 13,845.12/x
  3. Step 3: Cross multiply
    31,362.99x = 47,044.49 × 13,845.12
  4. Step 4: Simplify right side
    31,362.99x = 651,336,609.39
  5. Step 5: Solve for x
    x = 651,336,609.39/31,362.99
  6. Step 6: Final answer
    x = 20,767.68

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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.