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Finding the Fourth Proportional to 5,492.55, 7,581.08 and 3,136.05

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Solution

The fourth proportional to 5,492.55, 7,581.08 and 3,136.05 is: 4,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.55 : 7,581.08 = 3,136.05 : x
  2. Step 2: Convert to fraction form
    5,492.55/7,581.08 = 3,136.05/x
  3. Step 3: Cross multiply
    5,492.55x = 7,581.08 × 3,136.05
  4. Step 4: Simplify right side
    5,492.55x = 23,774,645.93
  5. Step 5: Solve for x
    x = 23,774,645.93/5,492.55
  6. Step 6: Final answer
    x = 4,328.53

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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.