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Finding the Fourth Proportional to 3,672.19, 5,069.28 and 2,347.68

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Solution

The fourth proportional to 3,672.19, 5,069.28 and 2,347.68 is: 3,240.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.19 : 5,069.28 = 2,347.68 : x
  2. Step 2: Convert to fraction form
    3,672.19/5,069.28 = 2,347.68/x
  3. Step 3: Cross multiply
    3,672.19x = 5,069.28 × 2,347.68
  4. Step 4: Simplify right side
    3,672.19x = 11,901,075.08
  5. Step 5: Solve for x
    x = 11,901,075.08/3,672.19
  6. Step 6: Final answer
    x = 3,240.87

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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.