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Finding the Fourth Proportional to 61,985.82, 85,537.62 and 35,126.76

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Solution

The fourth proportional to 61,985.82, 85,537.62 and 35,126.76 is: 48,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,985.82 : 85,537.62 = 35,126.76 : x
  2. Step 2: Convert to fraction form
    61,985.82/85,537.62 = 35,126.76/x
  3. Step 3: Cross multiply
    61,985.82x = 85,537.62 × 35,126.76
  4. Step 4: Simplify right side
    61,985.82x = 3,004,659,448.71
  5. Step 5: Solve for x
    x = 3,004,659,448.71/61,985.82
  6. Step 6: Final answer
    x = 48,473.34

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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.