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Finding the Fourth Proportional to 3,583.13, 5,374.76 and 986.13

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Solution

The fourth proportional to 3,583.13, 5,374.76 and 986.13 is: 1,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.13 : 5,374.76 = 986.13 : x
  2. Step 2: Convert to fraction form
    3,583.13/5,374.76 = 986.13/x
  3. Step 3: Cross multiply
    3,583.13x = 5,374.76 × 986.13
  4. Step 4: Simplify right side
    3,583.13x = 5,300,207.15
  5. Step 5: Solve for x
    x = 5,300,207.15/3,583.13
  6. Step 6: Final answer
    x = 1,479.21

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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.