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Finding the Fourth Proportional to 62,762.78, 94,144.94 and 18,390.44

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Solution

The fourth proportional to 62,762.78, 94,144.94 and 18,390.44 is: 27,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,762.78 : 94,144.94 = 18,390.44 : x
  2. Step 2: Convert to fraction form
    62,762.78/94,144.94 = 18,390.44/x
  3. Step 3: Cross multiply
    62,762.78x = 94,144.94 × 18,390.44
  4. Step 4: Simplify right side
    62,762.78x = 1,731,366,307.70
  5. Step 5: Solve for x
    x = 1,731,366,307.70/62,762.78
  6. Step 6: Final answer
    x = 27,585.88

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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.