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Finding the Fourth Proportional to 55,358.99, 82,987.38 and 22,071

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Solution

The fourth proportional to 55,358.99, 82,987.38 and 22,071 is: 33,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.99 : 82,987.38 = 22,071 : x
  2. Step 2: Convert to fraction form
    55,358.99/82,987.38 = 22,071/x
  3. Step 3: Cross multiply
    55,358.99x = 82,987.38 × 22,071
  4. Step 4: Simplify right side
    55,358.99x = 1,831,614,463.98
  5. Step 5: Solve for x
    x = 1,831,614,463.98/55,358.99
  6. Step 6: Final answer
    x = 33,086.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.