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Finding the Fourth Proportional to 18,361.68, 25,333.13 and 10,703.20

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Solution

The fourth proportional to 18,361.68, 25,333.13 and 10,703.20 is: 14,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.68 : 25,333.13 = 10,703.20 : x
  2. Step 2: Convert to fraction form
    18,361.68/25,333.13 = 10,703.20/x
  3. Step 3: Cross multiply
    18,361.68x = 25,333.13 × 10,703.20
  4. Step 4: Simplify right side
    18,361.68x = 271,145,557.02
  5. Step 5: Solve for x
    x = 271,145,557.02/18,361.68
  6. Step 6: Final answer
    x = 14,766.93

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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.