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Finding the Fourth Proportional to 55,361.63, 83,053.38 and 20,301.59

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Solution

The fourth proportional to 55,361.63, 83,053.38 and 20,301.59 is: 30,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.63 : 83,053.38 = 20,301.59 : x
  2. Step 2: Convert to fraction form
    55,361.63/83,053.38 = 20,301.59/x
  3. Step 3: Cross multiply
    55,361.63x = 83,053.38 × 20,301.59
  4. Step 4: Simplify right side
    55,361.63x = 1,686,115,314.17
  5. Step 5: Solve for x
    x = 1,686,115,314.17/55,361.63
  6. Step 6: Final answer
    x = 30,456.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.