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Finding the Fourth Proportional to 5,611.61, 7,741.56 and 3,372.18

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Solution

The fourth proportional to 5,611.61, 7,741.56 and 3,372.18 is: 4,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.61 : 7,741.56 = 3,372.18 : x
  2. Step 2: Convert to fraction form
    5,611.61/7,741.56 = 3,372.18/x
  3. Step 3: Cross multiply
    5,611.61x = 7,741.56 × 3,372.18
  4. Step 4: Simplify right side
    5,611.61x = 26,105,941.99
  5. Step 5: Solve for x
    x = 26,105,941.99/5,611.61
  6. Step 6: Final answer
    x = 4,652.13

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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.