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Finding the Fourth Proportional to 25,178.72, 37,762.68 and 10,383.80

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Solution

The fourth proportional to 25,178.72, 37,762.68 and 10,383.80 is: 15,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,178.72 : 37,762.68 = 10,383.80 : x
  2. Step 2: Convert to fraction form
    25,178.72/37,762.68 = 10,383.80/x
  3. Step 3: Cross multiply
    25,178.72x = 37,762.68 × 10,383.80
  4. Step 4: Simplify right side
    25,178.72x = 392,120,116.58
  5. Step 5: Solve for x
    x = 392,120,116.58/25,178.72
  6. Step 6: Final answer
    x = 15,573.47

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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.