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Finding the Fourth Proportional to 6,674.05, 9,210.13 and 3,690.10

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Solution

The fourth proportional to 6,674.05, 9,210.13 and 3,690.10 is: 5,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,674.05 : 9,210.13 = 3,690.10 : x
  2. Step 2: Convert to fraction form
    6,674.05/9,210.13 = 3,690.10/x
  3. Step 3: Cross multiply
    6,674.05x = 9,210.13 × 3,690.10
  4. Step 4: Simplify right side
    6,674.05x = 33,986,300.71
  5. Step 5: Solve for x
    x = 33,986,300.71/6,674.05
  6. Step 6: Final answer
    x = 5,092.31

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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.