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Finding the Fourth Proportional to 56,362.88, 84,557.27 and 19,426.88

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Solution

The fourth proportional to 56,362.88, 84,557.27 and 19,426.88 is: 29,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,362.88 : 84,557.27 = 19,426.88 : x
  2. Step 2: Convert to fraction form
    56,362.88/84,557.27 = 19,426.88/x
  3. Step 3: Cross multiply
    56,362.88x = 84,557.27 × 19,426.88
  4. Step 4: Simplify right side
    56,362.88x = 1,642,683,563.20
  5. Step 5: Solve for x
    x = 1,642,683,563.20/56,362.88
  6. Step 6: Final answer
    x = 29,144.78

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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.