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Finding the Fourth Proportional to 8,372.94, 11,525.65 and 7,238.08

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Solution

The fourth proportional to 8,372.94, 11,525.65 and 7,238.08 is: 9,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.94 : 11,525.65 = 7,238.08 : x
  2. Step 2: Convert to fraction form
    8,372.94/11,525.65 = 7,238.08/x
  3. Step 3: Cross multiply
    8,372.94x = 11,525.65 × 7,238.08
  4. Step 4: Simplify right side
    8,372.94x = 83,423,576.75
  5. Step 5: Solve for x
    x = 83,423,576.75/8,372.94
  6. Step 6: Final answer
    x = 9,963.47

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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.