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Finding the Fourth Proportional to 62,406.78, 86,100.30 and 35,530.25

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Solution

The fourth proportional to 62,406.78, 86,100.30 and 35,530.25 is: 49,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,406.78 : 86,100.30 = 35,530.25 : x
  2. Step 2: Convert to fraction form
    62,406.78/86,100.30 = 35,530.25/x
  3. Step 3: Cross multiply
    62,406.78x = 86,100.30 × 35,530.25
  4. Step 4: Simplify right side
    62,406.78x = 3,059,165,184.08
  5. Step 5: Solve for x
    x = 3,059,165,184.08/62,406.78
  6. Step 6: Final answer
    x = 49,019.76

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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.