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Finding the Fourth Proportional to 56,643.33, 84,974.17 and 18,681.26

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Solution

The fourth proportional to 56,643.33, 84,974.17 and 18,681.26 is: 28,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,643.33 : 84,974.17 = 18,681.26 : x
  2. Step 2: Convert to fraction form
    56,643.33/84,974.17 = 18,681.26/x
  3. Step 3: Cross multiply
    56,643.33x = 84,974.17 × 18,681.26
  4. Step 4: Simplify right side
    56,643.33x = 1,587,424,563.05
  5. Step 5: Solve for x
    x = 1,587,424,563.05/56,643.33
  6. Step 6: Final answer
    x = 28,024.92

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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.