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Finding the Fourth Proportional to 6,686.64, 10,022.90 and 3,564.72

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Solution

The fourth proportional to 6,686.64, 10,022.90 and 3,564.72 is: 5,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.64 : 10,022.90 = 3,564.72 : x
  2. Step 2: Convert to fraction form
    6,686.64/10,022.90 = 3,564.72/x
  3. Step 3: Cross multiply
    6,686.64x = 10,022.90 × 3,564.72
  4. Step 4: Simplify right side
    6,686.64x = 35,728,814.26
  5. Step 5: Solve for x
    x = 35,728,814.26/6,686.64
  6. Step 6: Final answer
    x = 5,343.31

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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.