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Finding the Fourth Proportional to 61,690.95, 92,522.60 and 28,379.03

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Solution

The fourth proportional to 61,690.95, 92,522.60 and 28,379.03 is: 42,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,690.95 : 92,522.60 = 28,379.03 : x
  2. Step 2: Convert to fraction form
    61,690.95/92,522.60 = 28,379.03/x
  3. Step 3: Cross multiply
    61,690.95x = 92,522.60 × 28,379.03
  4. Step 4: Simplify right side
    61,690.95x = 2,625,701,641.08
  5. Step 5: Solve for x
    x = 2,625,701,641.08/61,690.95
  6. Step 6: Final answer
    x = 42,562.19

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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.