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Finding the Fourth Proportional to 13,272.52, 19,921.08 and 6,703.31

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Solution

The fourth proportional to 13,272.52, 19,921.08 and 6,703.31 is: 10,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.52 : 19,921.08 = 6,703.31 : x
  2. Step 2: Convert to fraction form
    13,272.52/19,921.08 = 6,703.31/x
  3. Step 3: Cross multiply
    13,272.52x = 19,921.08 × 6,703.31
  4. Step 4: Simplify right side
    13,272.52x = 133,537,174.77
  5. Step 5: Solve for x
    x = 133,537,174.77/13,272.52
  6. Step 6: Final answer
    x = 10,061.18

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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.