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Finding the Fourth Proportional to 14,940.79, 22,400.79 and 6,616.28

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Solution

The fourth proportional to 14,940.79, 22,400.79 and 6,616.28 is: 9,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.79 : 22,400.79 = 6,616.28 : x
  2. Step 2: Convert to fraction form
    14,940.79/22,400.79 = 6,616.28/x
  3. Step 3: Cross multiply
    14,940.79x = 22,400.79 × 6,616.28
  4. Step 4: Simplify right side
    14,940.79x = 148,209,930.05
  5. Step 5: Solve for x
    x = 148,209,930.05/14,940.79
  6. Step 6: Final answer
    x = 9,919.82

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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.