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Finding the Fourth Proportional to 61,878.44, 85,396.14 and 35,010.72

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Solution

The fourth proportional to 61,878.44, 85,396.14 and 35,010.72 is: 48,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,878.44 : 85,396.14 = 35,010.72 : x
  2. Step 2: Convert to fraction form
    61,878.44/85,396.14 = 35,010.72/x
  3. Step 3: Cross multiply
    61,878.44x = 85,396.14 × 35,010.72
  4. Step 4: Simplify right side
    61,878.44x = 2,989,780,346.62
  5. Step 5: Solve for x
    x = 2,989,780,346.62/61,878.44
  6. Step 6: Final answer
    x = 48,317.00

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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.