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Finding the Fourth Proportional to 14,451.71, 19,945.22 and 8,483.90

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Solution

The fourth proportional to 14,451.71, 19,945.22 and 8,483.90 is: 11,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.71 : 19,945.22 = 8,483.90 : x
  2. Step 2: Convert to fraction form
    14,451.71/19,945.22 = 8,483.90/x
  3. Step 3: Cross multiply
    14,451.71x = 19,945.22 × 8,483.90
  4. Step 4: Simplify right side
    14,451.71x = 169,213,109.81
  5. Step 5: Solve for x
    x = 169,213,109.81/14,451.71
  6. Step 6: Final answer
    x = 11,708.87

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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.