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Finding the Fourth Proportional to 6,375.75, 8,798.34 and 3,543.12

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Solution

The fourth proportional to 6,375.75, 8,798.34 and 3,543.12 is: 4,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,375.75 : 8,798.34 = 3,543.12 : x
  2. Step 2: Convert to fraction form
    6,375.75/8,798.34 = 3,543.12/x
  3. Step 3: Cross multiply
    6,375.75x = 8,798.34 × 3,543.12
  4. Step 4: Simplify right side
    6,375.75x = 31,173,574.42
  5. Step 5: Solve for x
    x = 31,173,574.42/6,375.75
  6. Step 6: Final answer
    x = 4,889.40

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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.