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Finding the Fourth Proportional to 61,853.20, 92,779.80 and 28,563.42

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Solution

The fourth proportional to 61,853.20, 92,779.80 and 28,563.42 is: 42,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,853.20 : 92,779.80 = 28,563.42 : x
  2. Step 2: Convert to fraction form
    61,853.20/92,779.80 = 28,563.42/x
  3. Step 3: Cross multiply
    61,853.20x = 92,779.80 × 28,563.42
  4. Step 4: Simplify right side
    61,853.20x = 2,650,108,394.92
  5. Step 5: Solve for x
    x = 2,650,108,394.92/61,853.20
  6. Step 6: Final answer
    x = 42,845.13

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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.