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Finding the Fourth Proportional to 6,425.67, 8,868.38 and 4,068.03

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Solution

The fourth proportional to 6,425.67, 8,868.38 and 4,068.03 is: 5,614.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.67 : 8,868.38 = 4,068.03 : x
  2. Step 2: Convert to fraction form
    6,425.67/8,868.38 = 4,068.03/x
  3. Step 3: Cross multiply
    6,425.67x = 8,868.38 × 4,068.03
  4. Step 4: Simplify right side
    6,425.67x = 36,076,815.55
  5. Step 5: Solve for x
    x = 36,076,815.55/6,425.67
  6. Step 6: Final answer
    x = 5,614.48

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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.