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Finding the Fourth Proportional to 56,496.78, 84,686.01 and 19,043.94

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Solution

The fourth proportional to 56,496.78, 84,686.01 and 19,043.94 is: 28,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496.78 : 84,686.01 = 19,043.94 : x
  2. Step 2: Convert to fraction form
    56,496.78/84,686.01 = 19,043.94/x
  3. Step 3: Cross multiply
    56,496.78x = 84,686.01 × 19,043.94
  4. Step 4: Simplify right side
    56,496.78x = 1,612,755,293.28
  5. Step 5: Solve for x
    x = 1,612,755,293.28/56,496.78
  6. Step 6: Final answer
    x = 28,545.97

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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.