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Finding the Fourth Proportional to 40,702.80, 61,054.20 and 37,009.20

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Solution

The fourth proportional to 40,702.80, 61,054.20 and 37,009.20 is: 55,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,702.80 : 61,054.20 = 37,009.20 : x
  2. Step 2: Convert to fraction form
    40,702.80/61,054.20 = 37,009.20/x
  3. Step 3: Cross multiply
    40,702.80x = 61,054.20 × 37,009.20
  4. Step 4: Simplify right side
    40,702.80x = 2,259,567,098.64
  5. Step 5: Solve for x
    x = 2,259,567,098.64/40,702.80
  6. Step 6: Final answer
    x = 55,513.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.