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Finding the Fourth Proportional to 61,103.97, 84,315.28 and 35,263.50

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Solution

The fourth proportional to 61,103.97, 84,315.28 and 35,263.50 is: 48,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,103.97 : 84,315.28 = 35,263.50 : x
  2. Step 2: Convert to fraction form
    61,103.97/84,315.28 = 35,263.50/x
  3. Step 3: Cross multiply
    61,103.97x = 84,315.28 × 35,263.50
  4. Step 4: Simplify right side
    61,103.97x = 2,973,252,012.33
  5. Step 5: Solve for x
    x = 2,973,252,012.33/61,103.97
  6. Step 6: Final answer
    x = 48,658.90

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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.