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Finding the Fourth Proportional to 61,785.99, 85,263.77 and 34,927.61

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Solution

The fourth proportional to 61,785.99, 85,263.77 and 34,927.61 is: 48,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,785.99 : 85,263.77 = 34,927.61 : x
  2. Step 2: Convert to fraction form
    61,785.99/85,263.77 = 34,927.61/x
  3. Step 3: Cross multiply
    61,785.99x = 85,263.77 × 34,927.61
  4. Step 4: Simplify right side
    61,785.99x = 2,978,059,366.69
  5. Step 5: Solve for x
    x = 2,978,059,366.69/61,785.99
  6. Step 6: Final answer
    x = 48,199.59

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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.