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Finding the Fourth Proportional to 12,957.78, 19,436.67 and 6,028.50

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Solution

The fourth proportional to 12,957.78, 19,436.67 and 6,028.50 is: 9,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.78 : 19,436.67 = 6,028.50 : x
  2. Step 2: Convert to fraction form
    12,957.78/19,436.67 = 6,028.50/x
  3. Step 3: Cross multiply
    12,957.78x = 19,436.67 × 6,028.50
  4. Step 4: Simplify right side
    12,957.78x = 117,173,965.10
  5. Step 5: Solve for x
    x = 117,173,965.10/12,957.78
  6. Step 6: Final answer
    x = 9,042.75

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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.