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Finding the Fourth Proportional to 6,278.15, 8,705.25 and 6,069.98

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Solution

The fourth proportional to 6,278.15, 8,705.25 and 6,069.98 is: 8,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.15 : 8,705.25 = 6,069.98 : x
  2. Step 2: Convert to fraction form
    6,278.15/8,705.25 = 6,069.98/x
  3. Step 3: Cross multiply
    6,278.15x = 8,705.25 × 6,069.98
  4. Step 4: Simplify right side
    6,278.15x = 52,840,649.87
  5. Step 5: Solve for x
    x = 52,840,649.87/6,278.15
  6. Step 6: Final answer
    x = 8,416.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.