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Finding the Fourth Proportional to 61,897.37, 85,422.87 and 34,675.83

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Solution

The fourth proportional to 61,897.37, 85,422.87 and 34,675.83 is: 47,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,897.37 : 85,422.87 = 34,675.83 : x
  2. Step 2: Convert to fraction form
    61,897.37/85,422.87 = 34,675.83/x
  3. Step 3: Cross multiply
    61,897.37x = 85,422.87 × 34,675.83
  4. Step 4: Simplify right side
    61,897.37x = 2,962,108,918.23
  5. Step 5: Solve for x
    x = 2,962,108,918.23/61,897.37
  6. Step 6: Final answer
    x = 47,855.17

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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.