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Finding the Fourth Proportional to 6,308.55, 8,704.02 and 4,069.58

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Solution

The fourth proportional to 6,308.55, 8,704.02 and 4,069.58 is: 5,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.55 : 8,704.02 = 4,069.58 : x
  2. Step 2: Convert to fraction form
    6,308.55/8,704.02 = 4,069.58/x
  3. Step 3: Cross multiply
    6,308.55x = 8,704.02 × 4,069.58
  4. Step 4: Simplify right side
    6,308.55x = 35,421,677.45
  5. Step 5: Solve for x
    x = 35,421,677.45/6,308.55
  6. Step 6: Final answer
    x = 5,614.87

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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.