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Finding the Fourth Proportional to 3,392.55, 4,681.17 and 1,900.44

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Solution

The fourth proportional to 3,392.55, 4,681.17 and 1,900.44 is: 2,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.55 : 4,681.17 = 1,900.44 : x
  2. Step 2: Convert to fraction form
    3,392.55/4,681.17 = 1,900.44/x
  3. Step 3: Cross multiply
    3,392.55x = 4,681.17 × 1,900.44
  4. Step 4: Simplify right side
    3,392.55x = 8,896,282.71
  5. Step 5: Solve for x
    x = 8,896,282.71/3,392.55
  6. Step 6: Final answer
    x = 2,622.30

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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.