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Finding the Fourth Proportional to 40,521.80, 55,946.16 and 25,435.16

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Solution

The fourth proportional to 40,521.80, 55,946.16 and 25,435.16 is: 35,116.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,521.80 : 55,946.16 = 25,435.16 : x
  2. Step 2: Convert to fraction form
    40,521.80/55,946.16 = 25,435.16/x
  3. Step 3: Cross multiply
    40,521.80x = 55,946.16 × 25,435.16
  4. Step 4: Simplify right side
    40,521.80x = 1,422,999,530.99
  5. Step 5: Solve for x
    x = 1,422,999,530.99/40,521.80
  6. Step 6: Final answer
    x = 35,116.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.