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Finding the Fourth Proportional to 7,903.91, 11,857.89 and 2,357.26

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Solution

The fourth proportional to 7,903.91, 11,857.89 and 2,357.26 is: 3,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.91 : 11,857.89 = 2,357.26 : x
  2. Step 2: Convert to fraction form
    7,903.91/11,857.89 = 2,357.26/x
  3. Step 3: Cross multiply
    7,903.91x = 11,857.89 × 2,357.26
  4. Step 4: Simplify right side
    7,903.91x = 27,952,129.78
  5. Step 5: Solve for x
    x = 27,952,129.78/7,903.91
  6. Step 6: Final answer
    x = 3,536.49

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1.5x scale

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.