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Finding the Fourth Proportional to 6,373.87, 8,774.10 and 5,529.60

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Solution

The fourth proportional to 6,373.87, 8,774.10 and 5,529.60 is: 7,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373.87 : 8,774.10 = 5,529.60 : x
  2. Step 2: Convert to fraction form
    6,373.87/8,774.10 = 5,529.60/x
  3. Step 3: Cross multiply
    6,373.87x = 8,774.10 × 5,529.60
  4. Step 4: Simplify right side
    6,373.87x = 48,517,263.36
  5. Step 5: Solve for x
    x = 48,517,263.36/6,373.87
  6. Step 6: Final answer
    x = 7,611.90

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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.