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Finding the Fourth Proportional to 3,689.52, 5,535.08 and 1,092.66

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Solution

The fourth proportional to 3,689.52, 5,535.08 and 1,092.66 is: 1,639.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.52 : 5,535.08 = 1,092.66 : x
  2. Step 2: Convert to fraction form
    3,689.52/5,535.08 = 1,092.66/x
  3. Step 3: Cross multiply
    3,689.52x = 5,535.08 × 1,092.66
  4. Step 4: Simplify right side
    3,689.52x = 6,047,960.51
  5. Step 5: Solve for x
    x = 6,047,960.51/3,689.52
  6. Step 6: Final answer
    x = 1,639.23

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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.