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Finding the Fourth Proportional to 61,262.69, 84,544.40 and 34,405.77

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Solution

The fourth proportional to 61,262.69, 84,544.40 and 34,405.77 is: 47,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,262.69 : 84,544.40 = 34,405.77 : x
  2. Step 2: Convert to fraction form
    61,262.69/84,544.40 = 34,405.77/x
  3. Step 3: Cross multiply
    61,262.69x = 84,544.40 × 34,405.77
  4. Step 4: Simplify right side
    61,262.69x = 2,908,815,267.20
  5. Step 5: Solve for x
    x = 2,908,815,267.20/61,262.69
  6. Step 6: Final answer
    x = 47,481.03

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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.