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Finding the Fourth Proportional to 12,697.45, 17,531.04 and 7,924.66

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Solution

The fourth proportional to 12,697.45, 17,531.04 and 7,924.66 is: 10,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.45 : 17,531.04 = 7,924.66 : x
  2. Step 2: Convert to fraction form
    12,697.45/17,531.04 = 7,924.66/x
  3. Step 3: Cross multiply
    12,697.45x = 17,531.04 × 7,924.66
  4. Step 4: Simplify right side
    12,697.45x = 138,927,531.45
  5. Step 5: Solve for x
    x = 138,927,531.45/12,697.45
  6. Step 6: Final answer
    x = 10,941.37

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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.