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Finding the Fourth Proportional to 60,619.73, 83,647.87 and 34,776.94

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Solution

The fourth proportional to 60,619.73, 83,647.87 and 34,776.94 is: 47,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,619.73 : 83,647.87 = 34,776.94 : x
  2. Step 2: Convert to fraction form
    60,619.73/83,647.87 = 34,776.94/x
  3. Step 3: Cross multiply
    60,619.73x = 83,647.87 × 34,776.94
  4. Step 4: Simplify right side
    60,619.73x = 2,909,016,956.12
  5. Step 5: Solve for x
    x = 2,909,016,956.12/60,619.73
  6. Step 6: Final answer
    x = 47,987.96

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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.