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Finding the Fourth Proportional to 14,520.95, 20,038.89 and 8,233.32

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Solution

The fourth proportional to 14,520.95, 20,038.89 and 8,233.32 is: 11,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.95 : 20,038.89 = 8,233.32 : x
  2. Step 2: Convert to fraction form
    14,520.95/20,038.89 = 8,233.32/x
  3. Step 3: Cross multiply
    14,520.95x = 20,038.89 × 8,233.32
  4. Step 4: Simplify right side
    14,520.95x = 164,986,593.81
  5. Step 5: Solve for x
    x = 164,986,593.81/14,520.95
  6. Step 6: Final answer
    x = 11,361.97

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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.