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Finding the Fourth Proportional to 10,364.40, 15,542.73 and 3,342.65

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Solution

The fourth proportional to 10,364.40, 15,542.73 and 3,342.65 is: 5,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364.40 : 15,542.73 = 3,342.65 : x
  2. Step 2: Convert to fraction form
    10,364.40/15,542.73 = 3,342.65/x
  3. Step 3: Cross multiply
    10,364.40x = 15,542.73 × 3,342.65
  4. Step 4: Simplify right side
    10,364.40x = 51,953,828.72
  5. Step 5: Solve for x
    x = 51,953,828.72/10,364.40
  6. Step 6: Final answer
    x = 5,012.72

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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.