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Finding the Fourth Proportional to 62,368.79, 86,068.78 and 34,074.68

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Solution

The fourth proportional to 62,368.79, 86,068.78 and 34,074.68 is: 47,022.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,368.79 : 86,068.78 = 34,074.68 : x
  2. Step 2: Convert to fraction form
    62,368.79/86,068.78 = 34,074.68/x
  3. Step 3: Cross multiply
    62,368.79x = 86,068.78 × 34,074.68
  4. Step 4: Simplify right side
    62,368.79x = 2,932,765,620.96
  5. Step 5: Solve for x
    x = 2,932,765,620.96/62,368.79
  6. Step 6: Final answer
    x = 47,022.97

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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.