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Finding the Fourth Proportional to 57,030.78, 85,486.02 and 23,717.31

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Solution

The fourth proportional to 57,030.78, 85,486.02 and 23,717.31 is: 35,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.78 : 85,486.02 = 23,717.31 : x
  2. Step 2: Convert to fraction form
    57,030.78/85,486.02 = 23,717.31/x
  3. Step 3: Cross multiply
    57,030.78x = 85,486.02 × 23,717.31
  4. Step 4: Simplify right side
    57,030.78x = 2,027,498,437.01
  5. Step 5: Solve for x
    x = 2,027,498,437.01/57,030.78
  6. Step 6: Final answer
    x = 35,550.95

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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.