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Finding the Fourth Proportional to 14,945.54, 20,624.02 and 8,230.90

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Solution

The fourth proportional to 14,945.54, 20,624.02 and 8,230.90 is: 11,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.54 : 20,624.02 = 8,230.90 : x
  2. Step 2: Convert to fraction form
    14,945.54/20,624.02 = 8,230.90/x
  3. Step 3: Cross multiply
    14,945.54x = 20,624.02 × 8,230.90
  4. Step 4: Simplify right side
    14,945.54x = 169,754,246.22
  5. Step 5: Solve for x
    x = 169,754,246.22/14,945.54
  6. Step 6: Final answer
    x = 11,358.19

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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.