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Finding the Fourth Proportional to 61,928.86, 85,464.84 and 35,072.50

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Solution

The fourth proportional to 61,928.86, 85,464.84 and 35,072.50 is: 48,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,928.86 : 85,464.84 = 35,072.50 : x
  2. Step 2: Convert to fraction form
    61,928.86/85,464.84 = 35,072.50/x
  3. Step 3: Cross multiply
    61,928.86x = 85,464.84 × 35,072.50
  4. Step 4: Simplify right side
    61,928.86x = 2,997,465,600.90
  5. Step 5: Solve for x
    x = 2,997,465,600.90/61,928.86
  6. Step 6: Final answer
    x = 48,401.76

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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.