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Finding the Fourth Proportional to 5,912.85, 8,853.62 and 3,569.72

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Solution

The fourth proportional to 5,912.85, 8,853.62 and 3,569.72 is: 5,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.85 : 8,853.62 = 3,569.72 : x
  2. Step 2: Convert to fraction form
    5,912.85/8,853.62 = 3,569.72/x
  3. Step 3: Cross multiply
    5,912.85x = 8,853.62 × 3,569.72
  4. Step 4: Simplify right side
    5,912.85x = 31,604,944.39
  5. Step 5: Solve for x
    x = 31,604,944.39/5,912.85
  6. Step 6: Final answer
    x = 5,345.13

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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.