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Finding the Fourth Proportional to 49,592.36, 74,388.54 and 12,656.36

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Solution

The fourth proportional to 49,592.36, 74,388.54 and 12,656.36 is: 18,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,592.36 : 74,388.54 = 12,656.36 : x
  2. Step 2: Convert to fraction form
    49,592.36/74,388.54 = 12,656.36/x
  3. Step 3: Cross multiply
    49,592.36x = 74,388.54 × 12,656.36
  4. Step 4: Simplify right side
    49,592.36x = 941,488,142.11
  5. Step 5: Solve for x
    x = 941,488,142.11/49,592.36
  6. Step 6: Final answer
    x = 18,984.54

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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.