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Finding the Fourth Proportional to 48,505.58, 66,936.71 and 28,374.38

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Solution

The fourth proportional to 48,505.58, 66,936.71 and 28,374.38 is: 39,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,505.58 : 66,936.71 = 28,374.38 : x
  2. Step 2: Convert to fraction form
    48,505.58/66,936.71 = 28,374.38/x
  3. Step 3: Cross multiply
    48,505.58x = 66,936.71 × 28,374.38
  4. Step 4: Simplify right side
    48,505.58x = 1,899,287,645.49
  5. Step 5: Solve for x
    x = 1,899,287,645.49/48,505.58
  6. Step 6: Final answer
    x = 39,156.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.