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Finding the Fourth Proportional to 61,855.99, 85,362.26 and 33,561.68

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Solution

The fourth proportional to 61,855.99, 85,362.26 and 33,561.68 is: 46,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,855.99 : 85,362.26 = 33,561.68 : x
  2. Step 2: Convert to fraction form
    61,855.99/85,362.26 = 33,561.68/x
  3. Step 3: Cross multiply
    61,855.99x = 85,362.26 × 33,561.68
  4. Step 4: Simplify right side
    61,855.99x = 2,864,900,259.58
  5. Step 5: Solve for x
    x = 2,864,900,259.58/61,855.99
  6. Step 6: Final answer
    x = 46,315.65

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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.