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Finding the Fourth Proportional to 53,398.80, 80,033.40 and 23,785.20

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Solution

The fourth proportional to 53,398.80, 80,033.40 and 23,785.20 is: 35,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,398.80 : 80,033.40 = 23,785.20 : x
  2. Step 2: Convert to fraction form
    53,398.80/80,033.40 = 23,785.20/x
  3. Step 3: Cross multiply
    53,398.80x = 80,033.40 × 23,785.20
  4. Step 4: Simplify right side
    53,398.80x = 1,903,610,425.68
  5. Step 5: Solve for x
    x = 1,903,610,425.68/53,398.80
  6. Step 6: Final answer
    x = 35,648.94

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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.