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Finding the Fourth Proportional to 56,410.61, 84,526.89 and 20,822.94

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Solution

The fourth proportional to 56,410.61, 84,526.89 and 20,822.94 is: 31,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,410.61 : 84,526.89 = 20,822.94 : x
  2. Step 2: Convert to fraction form
    56,410.61/84,526.89 = 20,822.94/x
  3. Step 3: Cross multiply
    56,410.61x = 84,526.89 × 20,822.94
  4. Step 4: Simplify right side
    56,410.61x = 1,760,098,358.86
  5. Step 5: Solve for x
    x = 1,760,098,358.86/56,410.61
  6. Step 6: Final answer
    x = 31,201.55

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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.