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Finding the Fourth Proportional to 56,589.66, 84,826.08 and 19,137.42

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Solution

The fourth proportional to 56,589.66, 84,826.08 and 19,137.42 is: 28,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,589.66 : 84,826.08 = 19,137.42 : x
  2. Step 2: Convert to fraction form
    56,589.66/84,826.08 = 19,137.42/x
  3. Step 3: Cross multiply
    56,589.66x = 84,826.08 × 19,137.42
  4. Step 4: Simplify right side
    56,589.66x = 1,623,352,319.91
  5. Step 5: Solve for x
    x = 1,623,352,319.91/56,589.66
  6. Step 6: Final answer
    x = 28,686.38

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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.