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Finding the Fourth Proportional to 8,992.52, 12,407.68 and 5,216.30

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Solution

The fourth proportional to 8,992.52, 12,407.68 and 5,216.30 is: 7,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.52 : 12,407.68 = 5,216.30 : x
  2. Step 2: Convert to fraction form
    8,992.52/12,407.68 = 5,216.30/x
  3. Step 3: Cross multiply
    8,992.52x = 12,407.68 × 5,216.30
  4. Step 4: Simplify right side
    8,992.52x = 64,722,181.18
  5. Step 5: Solve for x
    x = 64,722,181.18/8,992.52
  6. Step 6: Final answer
    x = 7,197.34

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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.