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Finding the Fourth Proportional to 39,453.50, 54,447.46 and 22,686.50

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Solution

The fourth proportional to 39,453.50, 54,447.46 and 22,686.50 is: 31,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.50 : 54,447.46 = 22,686.50 : x
  2. Step 2: Convert to fraction form
    39,453.50/54,447.46 = 22,686.50/x
  3. Step 3: Cross multiply
    39,453.50x = 54,447.46 × 22,686.50
  4. Step 4: Simplify right side
    39,453.50x = 1,235,222,301.29
  5. Step 5: Solve for x
    x = 1,235,222,301.29/39,453.50
  6. Step 6: Final answer
    x = 31,308.31

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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.