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Finding the Fourth Proportional to 14,940.01, 20,616.02 and 8,652.79

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Solution

The fourth proportional to 14,940.01, 20,616.02 and 8,652.79 is: 11,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.01 : 20,616.02 = 8,652.79 : x
  2. Step 2: Convert to fraction form
    14,940.01/20,616.02 = 8,652.79/x
  3. Step 3: Cross multiply
    14,940.01x = 20,616.02 × 8,652.79
  4. Step 4: Simplify right side
    14,940.01x = 178,386,048.43
  5. Step 5: Solve for x
    x = 178,386,048.43/14,940.01
  6. Step 6: Final answer
    x = 11,940.16

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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.