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Finding the Fourth Proportional to 6,308.70, 8,642.95 and 6,072.23

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Solution

The fourth proportional to 6,308.70, 8,642.95 and 6,072.23 is: 8,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.70 : 8,642.95 = 6,072.23 : x
  2. Step 2: Convert to fraction form
    6,308.70/8,642.95 = 6,072.23/x
  3. Step 3: Cross multiply
    6,308.70x = 8,642.95 × 6,072.23
  4. Step 4: Simplify right side
    6,308.70x = 52,482,020.86
  5. Step 5: Solve for x
    x = 52,482,020.86/6,308.70
  6. Step 6: Final answer
    x = 8,318.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.