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Finding the Fourth Proportional to 53,910.40, 80,836.80 and 22,710.40

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Solution

The fourth proportional to 53,910.40, 80,836.80 and 22,710.40 is: 34,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.40 : 80,836.80 = 22,710.40 : x
  2. Step 2: Convert to fraction form
    53,910.40/80,836.80 = 22,710.40/x
  3. Step 3: Cross multiply
    53,910.40x = 80,836.80 × 22,710.40
  4. Step 4: Simplify right side
    53,910.40x = 1,835,836,062.72
  5. Step 5: Solve for x
    x = 1,835,836,062.72/53,910.40
  6. Step 6: Final answer
    x = 34,053.47

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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.