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Finding the Fourth Proportional to 49,957.44, 74,934.72 and 13,021.44

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Solution

The fourth proportional to 49,957.44, 74,934.72 and 13,021.44 is: 19,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,957.44 : 74,934.72 = 13,021.44 : x
  2. Step 2: Convert to fraction form
    49,957.44/74,934.72 = 13,021.44/x
  3. Step 3: Cross multiply
    49,957.44x = 74,934.72 × 13,021.44
  4. Step 4: Simplify right side
    49,957.44x = 975,757,960.40
  5. Step 5: Solve for x
    x = 975,757,960.40/49,957.44
  6. Step 6: Final answer
    x = 19,531.78

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1.5x scale

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.