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Finding the Fourth Proportional to 49,978.95, 74,965.68 and 16,695.54

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Solution

The fourth proportional to 49,978.95, 74,965.68 and 16,695.54 is: 25,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,978.95 : 74,965.68 = 16,695.54 : x
  2. Step 2: Convert to fraction form
    49,978.95/74,965.68 = 16,695.54/x
  3. Step 3: Cross multiply
    49,978.95x = 74,965.68 × 16,695.54
  4. Step 4: Simplify right side
    49,978.95x = 1,251,592,509.07
  5. Step 5: Solve for x
    x = 1,251,592,509.07/49,978.95
  6. Step 6: Final answer
    x = 25,042.39

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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.