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Finding the Fourth Proportional to 61,806.64, 92,635.80 and 28,480.96

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Solution

The fourth proportional to 61,806.64, 92,635.80 and 28,480.96 is: 42,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,806.64 : 92,635.80 = 28,480.96 : x
  2. Step 2: Convert to fraction form
    61,806.64/92,635.80 = 28,480.96/x
  3. Step 3: Cross multiply
    61,806.64x = 92,635.80 × 28,480.96
  4. Step 4: Simplify right side
    61,806.64x = 2,638,356,514.37
  5. Step 5: Solve for x
    x = 2,638,356,514.37/61,806.64
  6. Step 6: Final answer
    x = 42,687.27

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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.