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Finding the Fourth Proportional to 61,840.86, 85,340.40 and 34,982.82

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Solution

The fourth proportional to 61,840.86, 85,340.40 and 34,982.82 is: 48,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,840.86 : 85,340.40 = 34,982.82 : x
  2. Step 2: Convert to fraction form
    61,840.86/85,340.40 = 34,982.82/x
  3. Step 3: Cross multiply
    61,840.86x = 85,340.40 × 34,982.82
  4. Step 4: Simplify right side
    61,840.86x = 2,985,447,851.93
  5. Step 5: Solve for x
    x = 2,985,447,851.93/61,840.86
  6. Step 6: Final answer
    x = 48,276.30

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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.