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Finding the Fourth Proportional to 61,895.81, 85,416.32 and 33,601.50

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Solution

The fourth proportional to 61,895.81, 85,416.32 and 33,601.50 is: 46,370.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,895.81 : 85,416.32 = 33,601.50 : x
  2. Step 2: Convert to fraction form
    61,895.81/85,416.32 = 33,601.50/x
  3. Step 3: Cross multiply
    61,895.81x = 85,416.32 × 33,601.50
  4. Step 4: Simplify right side
    61,895.81x = 2,870,116,560.48
  5. Step 5: Solve for x
    x = 2,870,116,560.48/61,895.81
  6. Step 6: Final answer
    x = 46,370.12

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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.