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Finding the Fourth Proportional to 60,243.70, 83,135.63 and 33,020

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Solution

The fourth proportional to 60,243.70, 83,135.63 and 33,020 is: 45,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,243.70 : 83,135.63 = 33,020 : x
  2. Step 2: Convert to fraction form
    60,243.70/83,135.63 = 33,020/x
  3. Step 3: Cross multiply
    60,243.70x = 83,135.63 × 33,020
  4. Step 4: Simplify right side
    60,243.70x = 2,745,138,502.60
  5. Step 5: Solve for x
    x = 2,745,138,502.60/60,243.70
  6. Step 6: Final answer
    x = 45,567.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.