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Finding the Fourth Proportional to 53,930.40, 80,866.80 and 22,730.40

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Solution

The fourth proportional to 53,930.40, 80,866.80 and 22,730.40 is: 34,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,930.40 : 80,866.80 = 22,730.40 : x
  2. Step 2: Convert to fraction form
    53,930.40/80,866.80 = 22,730.40/x
  3. Step 3: Cross multiply
    53,930.40x = 80,866.80 × 22,730.40
  4. Step 4: Simplify right side
    53,930.40x = 1,838,134,710.72
  5. Step 5: Solve for x
    x = 1,838,134,710.72/53,930.40
  6. Step 6: Final answer
    x = 34,083.46

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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.