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Finding the Fourth Proportional to 7,662.72, 11,483.28 and 3,492.48

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Solution

The fourth proportional to 7,662.72, 11,483.28 and 3,492.48 is: 5,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.72 : 11,483.28 = 3,492.48 : x
  2. Step 2: Convert to fraction form
    7,662.72/11,483.28 = 3,492.48/x
  3. Step 3: Cross multiply
    7,662.72x = 11,483.28 × 3,492.48
  4. Step 4: Simplify right side
    7,662.72x = 40,105,125.73
  5. Step 5: Solve for x
    x = 40,105,125.73/7,662.72
  6. Step 6: Final answer
    x = 5,233.80

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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.