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Finding the Fourth Proportional to 61,827.99, 85,314.86 and 36,672.63

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Solution

The fourth proportional to 61,827.99, 85,314.86 and 36,672.63 is: 50,603.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,827.99 : 85,314.86 = 36,672.63 : x
  2. Step 2: Convert to fraction form
    61,827.99/85,314.86 = 36,672.63/x
  3. Step 3: Cross multiply
    61,827.99x = 85,314.86 × 36,672.63
  4. Step 4: Simplify right side
    61,827.99x = 3,128,719,959.39
  5. Step 5: Solve for x
    x = 3,128,719,959.39/61,827.99
  6. Step 6: Final answer
    x = 50,603.62

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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.