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Finding the Fourth Proportional to 3,492.72, 5,239.34 and 895.64

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Solution

The fourth proportional to 3,492.72, 5,239.34 and 895.64 is: 1,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.72 : 5,239.34 = 895.64 : x
  2. Step 2: Convert to fraction form
    3,492.72/5,239.34 = 895.64/x
  3. Step 3: Cross multiply
    3,492.72x = 5,239.34 × 895.64
  4. Step 4: Simplify right side
    3,492.72x = 4,692,562.48
  5. Step 5: Solve for x
    x = 4,692,562.48/3,492.72
  6. Step 6: Final answer
    x = 1,343.53

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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.