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Finding the Fourth Proportional to 61,881.15, 85,393.71 and 33,586.23

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Solution

The fourth proportional to 61,881.15, 85,393.71 and 33,586.23 is: 46,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.15 : 85,393.71 = 33,586.23 : x
  2. Step 2: Convert to fraction form
    61,881.15/85,393.71 = 33,586.23/x
  3. Step 3: Cross multiply
    61,881.15x = 85,393.71 × 33,586.23
  4. Step 4: Simplify right side
    61,881.15x = 2,868,052,784.61
  5. Step 5: Solve for x
    x = 2,868,052,784.61/61,881.15
  6. Step 6: Final answer
    x = 46,347.76

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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.