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Finding the Fourth Proportional to 55,801.87, 77,007.15 and 30,308.48

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Solution

The fourth proportional to 55,801.87, 77,007.15 and 30,308.48 is: 41,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,801.87 : 77,007.15 = 30,308.48 : x
  2. Step 2: Convert to fraction form
    55,801.87/77,007.15 = 30,308.48/x
  3. Step 3: Cross multiply
    55,801.87x = 77,007.15 × 30,308.48
  4. Step 4: Simplify right side
    55,801.87x = 2,333,969,514.09
  5. Step 5: Solve for x
    x = 2,333,969,514.09/55,801.87
  6. Step 6: Final answer
    x = 41,826.01

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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.