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Finding the Fourth Proportional to 6,412.16, 8,846.81 and 3,757.70

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Solution

The fourth proportional to 6,412.16, 8,846.81 and 3,757.70 is: 5,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.16 : 8,846.81 = 3,757.70 : x
  2. Step 2: Convert to fraction form
    6,412.16/8,846.81 = 3,757.70/x
  3. Step 3: Cross multiply
    6,412.16x = 8,846.81 × 3,757.70
  4. Step 4: Simplify right side
    6,412.16x = 33,243,657.94
  5. Step 5: Solve for x
    x = 33,243,657.94/6,412.16
  6. Step 6: Final answer
    x = 5,184.47

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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.