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Finding the Fourth Proportional to 49,468.88, 74,203.32 and 12,532.88

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Solution

The fourth proportional to 49,468.88, 74,203.32 and 12,532.88 is: 18,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,468.88 : 74,203.32 = 12,532.88 : x
  2. Step 2: Convert to fraction form
    49,468.88/74,203.32 = 12,532.88/x
  3. Step 3: Cross multiply
    49,468.88x = 74,203.32 × 12,532.88
  4. Step 4: Simplify right side
    49,468.88x = 929,980,934.15
  5. Step 5: Solve for x
    x = 929,980,934.15/49,468.88
  6. Step 6: Final answer
    x = 18,799.31

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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.