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Finding the Fourth Proportional to 12,697.43, 17,524.59 and 7,395.40

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Solution

The fourth proportional to 12,697.43, 17,524.59 and 7,395.40 is: 10,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.43 : 17,524.59 = 7,395.40 : x
  2. Step 2: Convert to fraction form
    12,697.43/17,524.59 = 7,395.40/x
  3. Step 3: Cross multiply
    12,697.43x = 17,524.59 × 7,395.40
  4. Step 4: Simplify right side
    12,697.43x = 129,601,265.26
  5. Step 5: Solve for x
    x = 129,601,265.26/12,697.43
  6. Step 6: Final answer
    x = 10,206.89

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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.