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Finding the Fourth Proportional to 7,672.16, 11,483.49 and 3,969.29

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Solution

The fourth proportional to 7,672.16, 11,483.49 and 3,969.29 is: 5,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.16 : 11,483.49 = 3,969.29 : x
  2. Step 2: Convert to fraction form
    7,672.16/11,483.49 = 3,969.29/x
  3. Step 3: Cross multiply
    7,672.16x = 11,483.49 × 3,969.29
  4. Step 4: Simplify right side
    7,672.16x = 45,581,302.02
  5. Step 5: Solve for x
    x = 45,581,302.02/7,672.16
  6. Step 6: Final answer
    x = 5,941.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.