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Finding the Fourth Proportional to 55,485.79, 83,290.87 and 22,229.03

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Solution

The fourth proportional to 55,485.79, 83,290.87 and 22,229.03 is: 33,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485.79 : 83,290.87 = 22,229.03 : x
  2. Step 2: Convert to fraction form
    55,485.79/83,290.87 = 22,229.03/x
  3. Step 3: Cross multiply
    55,485.79x = 83,290.87 × 22,229.03
  4. Step 4: Simplify right side
    55,485.79x = 1,851,475,400.61
  5. Step 5: Solve for x
    x = 1,851,475,400.61/55,485.79
  6. Step 6: Final answer
    x = 33,368.46

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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.