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Finding the Fourth Proportional to 14,470.71, 19,969.54 and 8,183.08

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Solution

The fourth proportional to 14,470.71, 19,969.54 and 8,183.08 is: 11,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,470.71 : 19,969.54 = 8,183.08 : x
  2. Step 2: Convert to fraction form
    14,470.71/19,969.54 = 8,183.08/x
  3. Step 3: Cross multiply
    14,470.71x = 19,969.54 × 8,183.08
  4. Step 4: Simplify right side
    14,470.71x = 163,412,343.38
  5. Step 5: Solve for x
    x = 163,412,343.38/14,470.71
  6. Step 6: Final answer
    x = 11,292.63

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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.