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Finding the Fourth Proportional to 61,659, 85,089.42 and 33,364.89

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Solution

The fourth proportional to 61,659, 85,089.42 and 33,364.89 is: 46,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659 : 85,089.42 = 33,364.89 : x
  2. Step 2: Convert to fraction form
    61,659/85,089.42 = 33,364.89/x
  3. Step 3: Cross multiply
    61,659x = 85,089.42 × 33,364.89
  4. Step 4: Simplify right side
    61,659x = 2,838,999,138.46
  5. Step 5: Solve for x
    x = 2,838,999,138.46/61,659
  6. Step 6: Final answer
    x = 46,043.55

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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.