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Finding the Fourth Proportional to 12,907.58, 19,359.25 and 4,141.36

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Solution

The fourth proportional to 12,907.58, 19,359.25 and 4,141.36 is: 6,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.58 : 19,359.25 = 4,141.36 : x
  2. Step 2: Convert to fraction form
    12,907.58/19,359.25 = 4,141.36/x
  3. Step 3: Cross multiply
    12,907.58x = 19,359.25 × 4,141.36
  4. Step 4: Simplify right side
    12,907.58x = 80,173,564.83
  5. Step 5: Solve for x
    x = 80,173,564.83/12,907.58
  6. Step 6: Final answer
    x = 6,211.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.