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Finding the Fourth Proportional to 59,212.80, 81,721.44 and 37,997.28

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Solution

The fourth proportional to 59,212.80, 81,721.44 and 37,997.28 is: 52,441.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,212.80 : 81,721.44 = 37,997.28 : x
  2. Step 2: Convert to fraction form
    59,212.80/81,721.44 = 37,997.28/x
  3. Step 3: Cross multiply
    59,212.80x = 81,721.44 × 37,997.28
  4. Step 4: Simplify right side
    59,212.80x = 3,105,192,437.68
  5. Step 5: Solve for x
    x = 3,105,192,437.68/59,212.80
  6. Step 6: Final answer
    x = 52,441.24

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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.