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Finding the Fourth Proportional to 57,585.51, 86,385.54 and 22,520.61

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Solution

The fourth proportional to 57,585.51, 86,385.54 and 22,520.61 is: 33,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,585.51 : 86,385.54 = 22,520.61 : x
  2. Step 2: Convert to fraction form
    57,585.51/86,385.54 = 22,520.61/x
  3. Step 3: Cross multiply
    57,585.51x = 86,385.54 × 22,520.61
  4. Step 4: Simplify right side
    57,585.51x = 1,945,455,055.98
  5. Step 5: Solve for x
    x = 1,945,455,055.98/57,585.51
  6. Step 6: Final answer
    x = 33,783.76

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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.