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Finding the Fourth Proportional to 61,798.87, 85,286.81 and 34,941.64

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Solution

The fourth proportional to 61,798.87, 85,286.81 and 34,941.64 is: 48,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.87 : 85,286.81 = 34,941.64 : x
  2. Step 2: Convert to fraction form
    61,798.87/85,286.81 = 34,941.64/x
  3. Step 3: Cross multiply
    61,798.87x = 85,286.81 × 34,941.64
  4. Step 4: Simplify right side
    61,798.87x = 2,980,061,011.77
  5. Step 5: Solve for x
    x = 2,980,061,011.77/61,798.87
  6. Step 6: Final answer
    x = 48,221.93

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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.