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Finding the Fourth Proportional to 62,866.71, 86,776.43 and 40,266.54

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Solution

The fourth proportional to 62,866.71, 86,776.43 and 40,266.54 is: 55,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,866.71 : 86,776.43 = 40,266.54 : x
  2. Step 2: Convert to fraction form
    62,866.71/86,776.43 = 40,266.54/x
  3. Step 3: Cross multiply
    62,866.71x = 86,776.43 × 40,266.54
  4. Step 4: Simplify right side
    62,866.71x = 3,494,186,388.32
  5. Step 5: Solve for x
    x = 3,494,186,388.32/62,866.71
  6. Step 6: Final answer
    x = 55,580.87

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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.