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Finding the Fourth Proportional to 54,666.60, 75,414.10 and 31,991.68

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Solution

The fourth proportional to 54,666.60, 75,414.10 and 31,991.68 is: 44,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,666.60 : 75,414.10 = 31,991.68 : x
  2. Step 2: Convert to fraction form
    54,666.60/75,414.10 = 31,991.68/x
  3. Step 3: Cross multiply
    54,666.60x = 75,414.10 × 31,991.68
  4. Step 4: Simplify right side
    54,666.60x = 2,412,623,754.69
  5. Step 5: Solve for x
    x = 2,412,623,754.69/54,666.60
  6. Step 6: Final answer
    x = 44,133.42

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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.