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Finding the Fourth Proportional to 3,603.91, 5,405.85 and 1,006.84

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Solution

The fourth proportional to 3,603.91, 5,405.85 and 1,006.84 is: 1,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.91 : 5,405.85 = 1,006.84 : x
  2. Step 2: Convert to fraction form
    3,603.91/5,405.85 = 1,006.84/x
  3. Step 3: Cross multiply
    3,603.91x = 5,405.85 × 1,006.84
  4. Step 4: Simplify right side
    3,603.91x = 5,442,826.01
  5. Step 5: Solve for x
    x = 5,442,826.01/3,603.91
  6. Step 6: Final answer
    x = 1,510.26

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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.