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Finding the Fourth Proportional to 3,655.71, 5,485.73 and 1,348.83

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Solution

The fourth proportional to 3,655.71, 5,485.73 and 1,348.83 is: 2,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.71 : 5,485.73 = 1,348.83 : x
  2. Step 2: Convert to fraction form
    3,655.71/5,485.73 = 1,348.83/x
  3. Step 3: Cross multiply
    3,655.71x = 5,485.73 × 1,348.83
  4. Step 4: Simplify right side
    3,655.71x = 7,399,310.45
  5. Step 5: Solve for x
    x = 7,399,310.45/3,655.71
  6. Step 6: Final answer
    x = 2,024.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.