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Finding the Fourth Proportional to 12,612.84, 18,927.72 and 4,404.84

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Solution

The fourth proportional to 12,612.84, 18,927.72 and 4,404.84 is: 6,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.84 : 18,927.72 = 4,404.84 : x
  2. Step 2: Convert to fraction form
    12,612.84/18,927.72 = 4,404.84/x
  3. Step 3: Cross multiply
    12,612.84x = 18,927.72 × 4,404.84
  4. Step 4: Simplify right side
    12,612.84x = 83,373,578.16
  5. Step 5: Solve for x
    x = 83,373,578.16/12,612.84
  6. Step 6: Final answer
    x = 6,610.21

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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.