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Finding the Fourth Proportional to 61,870.80, 92,840.22 and 26,810.76

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Solution

The fourth proportional to 61,870.80, 92,840.22 and 26,810.76 is: 40,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,870.80 : 92,840.22 = 26,810.76 : x
  2. Step 2: Convert to fraction form
    61,870.80/92,840.22 = 26,810.76/x
  3. Step 3: Cross multiply
    61,870.80x = 92,840.22 × 26,810.76
  4. Step 4: Simplify right side
    61,870.80x = 2,489,116,856.77
  5. Step 5: Solve for x
    x = 2,489,116,856.77/61,870.80
  6. Step 6: Final answer
    x = 40,230.88

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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.