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Finding the Fourth Proportional to 62,345.31, 86,040.91 and 35,487.81

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Solution

The fourth proportional to 62,345.31, 86,040.91 and 35,487.81 is: 48,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,345.31 : 86,040.91 = 35,487.81 : x
  2. Step 2: Convert to fraction form
    62,345.31/86,040.91 = 35,487.81/x
  3. Step 3: Cross multiply
    62,345.31x = 86,040.91 × 35,487.81
  4. Step 4: Simplify right side
    62,345.31x = 3,053,403,510.67
  5. Step 5: Solve for x
    x = 3,053,403,510.67/62,345.31
  6. Step 6: Final answer
    x = 48,975.68

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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.