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Finding the Fourth Proportional to 8,361.36, 12,526.20 and 5,579.64

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Solution

The fourth proportional to 8,361.36, 12,526.20 and 5,579.64 is: 8,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.36 : 12,526.20 = 5,579.64 : x
  2. Step 2: Convert to fraction form
    8,361.36/12,526.20 = 5,579.64/x
  3. Step 3: Cross multiply
    8,361.36x = 12,526.20 × 5,579.64
  4. Step 4: Simplify right side
    8,361.36x = 69,891,686.57
  5. Step 5: Solve for x
    x = 69,891,686.57/8,361.36
  6. Step 6: Final answer
    x = 8,358.89

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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.