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Finding the Fourth Proportional to 29,093.25, 40,148.69 and 15,845.25

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Solution

The fourth proportional to 29,093.25, 40,148.69 and 15,845.25 is: 21,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,093.25 : 40,148.69 = 15,845.25 : x
  2. Step 2: Convert to fraction form
    29,093.25/40,148.69 = 15,845.25/x
  3. Step 3: Cross multiply
    29,093.25x = 40,148.69 × 15,845.25
  4. Step 4: Simplify right side
    29,093.25x = 636,166,030.22
  5. Step 5: Solve for x
    x = 636,166,030.22/29,093.25
  6. Step 6: Final answer
    x = 21,866.45

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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.