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Finding the Fourth Proportional to 5,072.72, 6,992.52 and 4,865.36

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Solution

The fourth proportional to 5,072.72, 6,992.52 and 4,865.36 is: 6,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.72 : 6,992.52 = 4,865.36 : x
  2. Step 2: Convert to fraction form
    5,072.72/6,992.52 = 4,865.36/x
  3. Step 3: Cross multiply
    5,072.72x = 6,992.52 × 4,865.36
  4. Step 4: Simplify right side
    5,072.72x = 34,021,127.11
  5. Step 5: Solve for x
    x = 34,021,127.11/5,072.72
  6. Step 6: Final answer
    x = 6,706.68

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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.