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Finding the Fourth Proportional to 7,371.88, 10,175.34 and 5,890.12

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Solution

The fourth proportional to 7,371.88, 10,175.34 and 5,890.12 is: 8,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.88 : 10,175.34 = 5,890.12 : x
  2. Step 2: Convert to fraction form
    7,371.88/10,175.34 = 5,890.12/x
  3. Step 3: Cross multiply
    7,371.88x = 10,175.34 × 5,890.12
  4. Step 4: Simplify right side
    7,371.88x = 59,933,973.64
  5. Step 5: Solve for x
    x = 59,933,973.64/7,371.88
  6. Step 6: Final answer
    x = 8,130.08

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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.