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Finding the Fourth Proportional to 14,661.60, 21,995.64 and 7,270.08

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Solution

The fourth proportional to 14,661.60, 21,995.64 and 7,270.08 is: 10,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.60 : 21,995.64 = 7,270.08 : x
  2. Step 2: Convert to fraction form
    14,661.60/21,995.64 = 7,270.08/x
  3. Step 3: Cross multiply
    14,661.60x = 21,995.64 × 7,270.08
  4. Step 4: Simplify right side
    14,661.60x = 159,910,062.45
  5. Step 5: Solve for x
    x = 159,910,062.45/14,661.60
  6. Step 6: Final answer
    x = 10,906.73

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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.