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Finding the Fourth Proportional to 55,478.97, 83,239.47 and 33,307.83

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Solution

The fourth proportional to 55,478.97, 83,239.47 and 33,307.83 is: 49,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.97 : 83,239.47 = 33,307.83 : x
  2. Step 2: Convert to fraction form
    55,478.97/83,239.47 = 33,307.83/x
  3. Step 3: Cross multiply
    55,478.97x = 83,239.47 × 33,307.83
  4. Step 4: Simplify right side
    55,478.97x = 2,772,526,116.05
  5. Step 5: Solve for x
    x = 2,772,526,116.05/55,478.97
  6. Step 6: Final answer
    x = 49,974.36

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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.