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Finding the Fourth Proportional to 55,687.51, 83,420.01 and 33,488.74

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Solution

The fourth proportional to 55,687.51, 83,420.01 and 33,488.74 is: 50,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.51 : 83,420.01 = 33,488.74 : x
  2. Step 2: Convert to fraction form
    55,687.51/83,420.01 = 33,488.74/x
  3. Step 3: Cross multiply
    55,687.51x = 83,420.01 × 33,488.74
  4. Step 4: Simplify right side
    55,687.51x = 2,793,631,025.69
  5. Step 5: Solve for x
    x = 2,793,631,025.69/55,687.51
  6. Step 6: Final answer
    x = 50,166.20

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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.