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Finding the Fourth Proportional to 12,356.25, 17,051.63 and 6,691.03

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Solution

The fourth proportional to 12,356.25, 17,051.63 and 6,691.03 is: 9,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.25 : 17,051.63 = 6,691.03 : x
  2. Step 2: Convert to fraction form
    12,356.25/17,051.63 = 6,691.03/x
  3. Step 3: Cross multiply
    12,356.25x = 17,051.63 × 6,691.03
  4. Step 4: Simplify right side
    12,356.25x = 114,092,967.88
  5. Step 5: Solve for x
    x = 114,092,967.88/12,356.25
  6. Step 6: Final answer
    x = 9,233.62

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1.5x scale

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.