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Finding the Fourth Proportional to 38,491.77, 53,107.04 and 22,355.97

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Solution

The fourth proportional to 38,491.77, 53,107.04 and 22,355.97 is: 30,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491.77 : 53,107.04 = 22,355.97 : x
  2. Step 2: Convert to fraction form
    38,491.77/53,107.04 = 22,355.97/x
  3. Step 3: Cross multiply
    38,491.77x = 53,107.04 × 22,355.97
  4. Step 4: Simplify right side
    38,491.77x = 1,187,259,393.03
  5. Step 5: Solve for x
    x = 1,187,259,393.03/38,491.77
  6. Step 6: Final answer
    x = 30,844.50

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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.