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Finding the Fourth Proportional to 7,274.98, 10,039.17 and 4,131.46

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Solution

The fourth proportional to 7,274.98, 10,039.17 and 4,131.46 is: 5,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.98 : 10,039.17 = 4,131.46 : x
  2. Step 2: Convert to fraction form
    7,274.98/10,039.17 = 4,131.46/x
  3. Step 3: Cross multiply
    7,274.98x = 10,039.17 × 4,131.46
  4. Step 4: Simplify right side
    7,274.98x = 41,476,429.29
  5. Step 5: Solve for x
    x = 41,476,429.29/7,274.98
  6. Step 6: Final answer
    x = 5,701.24

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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.