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Finding the Fourth Proportional to 55,223.39, 82,866.74 and 21,484.97

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Solution

The fourth proportional to 55,223.39, 82,866.74 and 21,484.97 is: 32,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.39 : 82,866.74 = 21,484.97 : x
  2. Step 2: Convert to fraction form
    55,223.39/82,866.74 = 21,484.97/x
  3. Step 3: Cross multiply
    55,223.39x = 82,866.74 × 21,484.97
  4. Step 4: Simplify right side
    55,223.39x = 1,780,388,901.14
  5. Step 5: Solve for x
    x = 1,780,388,901.14/55,223.39
  6. Step 6: Final answer
    x = 32,239.76

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1.5x scale

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.