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Finding the Fourth Proportional to 62,509.49, 86,255.51 and 49,795.05

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Solution

The fourth proportional to 62,509.49, 86,255.51 and 49,795.05 is: 68,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,509.49 : 86,255.51 = 49,795.05 : x
  2. Step 2: Convert to fraction form
    62,509.49/86,255.51 = 49,795.05/x
  3. Step 3: Cross multiply
    62,509.49x = 86,255.51 × 49,795.05
  4. Step 4: Simplify right side
    62,509.49x = 4,295,097,184.25
  5. Step 5: Solve for x
    x = 4,295,097,184.25/62,509.49
  6. Step 6: Final answer
    x = 68,711.13

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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.