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Finding the Fourth Proportional to 61,490.61, 84,852.77 and 36,335.25

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Solution

The fourth proportional to 61,490.61, 84,852.77 and 36,335.25 is: 50,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,490.61 : 84,852.77 = 36,335.25 : x
  2. Step 2: Convert to fraction form
    61,490.61/84,852.77 = 36,335.25/x
  3. Step 3: Cross multiply
    61,490.61x = 84,852.77 × 36,335.25
  4. Step 4: Simplify right side
    61,490.61x = 3,083,146,429.47
  5. Step 5: Solve for x
    x = 3,083,146,429.47/61,490.61
  6. Step 6: Final answer
    x = 50,140.12

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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.