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Finding the Fourth Proportional to 61,415.96, 84,764.34 and 35,570.72

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Solution

The fourth proportional to 61,415.96, 84,764.34 and 35,570.72 is: 49,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.96 : 84,764.34 = 35,570.72 : x
  2. Step 2: Convert to fraction form
    61,415.96/84,764.34 = 35,570.72/x
  3. Step 3: Cross multiply
    61,415.96x = 84,764.34 × 35,570.72
  4. Step 4: Simplify right side
    61,415.96x = 3,015,128,604.12
  5. Step 5: Solve for x
    x = 3,015,128,604.12/61,415.96
  6. Step 6: Final answer
    x = 49,093.57

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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.