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Finding the Fourth Proportional to 35,959.90, 53,964.15 and 20,164.90

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Solution

The fourth proportional to 35,959.90, 53,964.15 and 20,164.90 is: 30,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,959.90 : 53,964.15 = 20,164.90 : x
  2. Step 2: Convert to fraction form
    35,959.90/53,964.15 = 20,164.90/x
  3. Step 3: Cross multiply
    35,959.90x = 53,964.15 × 20,164.90
  4. Step 4: Simplify right side
    35,959.90x = 1,088,181,688.34
  5. Step 5: Solve for x
    x = 1,088,181,688.34/35,959.90
  6. Step 6: Final answer
    x = 30,260.98

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