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Finding the Fourth Proportional to 5,674.30, 8,512.34 and 2,899.46

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Solution

The fourth proportional to 5,674.30, 8,512.34 and 2,899.46 is: 4,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.30 : 8,512.34 = 2,899.46 : x
  2. Step 2: Convert to fraction form
    5,674.30/8,512.34 = 2,899.46/x
  3. Step 3: Cross multiply
    5,674.30x = 8,512.34 × 2,899.46
  4. Step 4: Simplify right side
    5,674.30x = 24,681,196.12
  5. Step 5: Solve for x
    x = 24,681,196.12/5,674.30
  6. Step 6: Final answer
    x = 4,349.65

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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.