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Finding the Fourth Proportional to 6,611.10, 9,123.78 and 4,369.08

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Solution

The fourth proportional to 6,611.10, 9,123.78 and 4,369.08 is: 6,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.10 : 9,123.78 = 4,369.08 : x
  2. Step 2: Convert to fraction form
    6,611.10/9,123.78 = 4,369.08/x
  3. Step 3: Cross multiply
    6,611.10x = 9,123.78 × 4,369.08
  4. Step 4: Simplify right side
    6,611.10x = 39,862,524.72
  5. Step 5: Solve for x
    x = 39,862,524.72/6,611.10
  6. Step 6: Final answer
    x = 6,029.64

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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.