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Finding the Fourth Proportional to 61,474.95, 84,834.63 and 34,620.12

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Solution

The fourth proportional to 61,474.95, 84,834.63 and 34,620.12 is: 47,775.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,474.95 : 84,834.63 = 34,620.12 : x
  2. Step 2: Convert to fraction form
    61,474.95/84,834.63 = 34,620.12/x
  3. Step 3: Cross multiply
    61,474.95x = 84,834.63 × 34,620.12
  4. Step 4: Simplify right side
    61,474.95x = 2,936,985,070.76
  5. Step 5: Solve for x
    x = 2,936,985,070.76/61,474.95
  6. Step 6: Final answer
    x = 47,775.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.