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Finding the Fourth Proportional to 12,392.88, 18,595.32 and 6,153.44

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Solution

The fourth proportional to 12,392.88, 18,595.32 and 6,153.44 is: 9,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.88 : 18,595.32 = 6,153.44 : x
  2. Step 2: Convert to fraction form
    12,392.88/18,595.32 = 6,153.44/x
  3. Step 3: Cross multiply
    12,392.88x = 18,595.32 × 6,153.44
  4. Step 4: Simplify right side
    12,392.88x = 114,425,185.90
  5. Step 5: Solve for x
    x = 114,425,185.90/12,392.88
  6. Step 6: Final answer
    x = 9,233.14

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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.