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Finding the Fourth Proportional to 49,593.36, 74,390.04 and 12,657.36

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Solution

The fourth proportional to 49,593.36, 74,390.04 and 12,657.36 is: 18,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,593.36 : 74,390.04 = 12,657.36 : x
  2. Step 2: Convert to fraction form
    49,593.36/74,390.04 = 12,657.36/x
  3. Step 3: Cross multiply
    49,593.36x = 74,390.04 × 12,657.36
  4. Step 4: Simplify right side
    49,593.36x = 941,581,516.69
  5. Step 5: Solve for x
    x = 941,581,516.69/49,593.36
  6. Step 6: Final answer
    x = 18,986.04

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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.