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Finding the Fourth Proportional to 61,851.72, 92,826.77 and 22,420.11

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Solution

The fourth proportional to 61,851.72, 92,826.77 and 22,420.11 is: 33,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,851.72 : 92,826.77 = 22,420.11 : x
  2. Step 2: Convert to fraction form
    61,851.72/92,826.77 = 22,420.11/x
  3. Step 3: Cross multiply
    61,851.72x = 92,826.77 × 22,420.11
  4. Step 4: Simplify right side
    61,851.72x = 2,081,186,282.24
  5. Step 5: Solve for x
    x = 2,081,186,282.24/61,851.72
  6. Step 6: Final answer
    x = 33,647.99

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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.