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Finding the Fourth Proportional to 14,763.71, 20,367.48 and 9,383.26

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Solution

The fourth proportional to 14,763.71, 20,367.48 and 9,383.26 is: 12,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763.71 : 20,367.48 = 9,383.26 : x
  2. Step 2: Convert to fraction form
    14,763.71/20,367.48 = 9,383.26/x
  3. Step 3: Cross multiply
    14,763.71x = 20,367.48 × 9,383.26
  4. Step 4: Simplify right side
    14,763.71x = 191,113,360.38
  5. Step 5: Solve for x
    x = 191,113,360.38/14,763.71
  6. Step 6: Final answer
    x = 12,944.81

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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.