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Finding the Fourth Proportional to 56,605, 84,790.80 and 33,160.36

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Solution

The fourth proportional to 56,605, 84,790.80 and 33,160.36 is: 49,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,605 : 84,790.80 = 33,160.36 : x
  2. Step 2: Convert to fraction form
    56,605/84,790.80 = 33,160.36/x
  3. Step 3: Cross multiply
    56,605x = 84,790.80 × 33,160.36
  4. Step 4: Simplify right side
    56,605x = 2,811,693,452.69
  5. Step 5: Solve for x
    x = 2,811,693,452.69/56,605
  6. Step 6: Final answer
    x = 49,672.17

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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.