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Finding the Fourth Proportional to 5,895.64, 8,135.78 and 3,242.80

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Solution

The fourth proportional to 5,895.64, 8,135.78 and 3,242.80 is: 4,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,895.64 : 8,135.78 = 3,242.80 : x
  2. Step 2: Convert to fraction form
    5,895.64/8,135.78 = 3,242.80/x
  3. Step 3: Cross multiply
    5,895.64x = 8,135.78 × 3,242.80
  4. Step 4: Simplify right side
    5,895.64x = 26,382,707.38
  5. Step 5: Solve for x
    x = 26,382,707.38/5,895.64
  6. Step 6: Final answer
    x = 4,474.95

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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.