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Finding the Fourth Proportional to 62,423.72, 86,138.52 and 35,564.64

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Solution

The fourth proportional to 62,423.72, 86,138.52 and 35,564.64 is: 49,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,423.72 : 86,138.52 = 35,564.64 : x
  2. Step 2: Convert to fraction form
    62,423.72/86,138.52 = 35,564.64/x
  3. Step 3: Cross multiply
    62,423.72x = 86,138.52 × 35,564.64
  4. Step 4: Simplify right side
    62,423.72x = 3,063,485,453.93
  5. Step 5: Solve for x
    x = 3,063,485,453.93/62,423.72
  6. Step 6: Final answer
    x = 49,075.66

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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.