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Finding the Fourth Proportional to 36,472.40, 50,205.48 and 31,453.28

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Solution

The fourth proportional to 36,472.40, 50,205.48 and 31,453.28 is: 43,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,472.40 : 50,205.48 = 31,453.28 : x
  2. Step 2: Convert to fraction form
    36,472.40/50,205.48 = 31,453.28/x
  3. Step 3: Cross multiply
    36,472.40x = 50,205.48 × 31,453.28
  4. Step 4: Simplify right side
    36,472.40x = 1,579,127,019.97
  5. Step 5: Solve for x
    x = 1,579,127,019.97/36,472.40
  6. Step 6: Final answer
    x = 43,296.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.