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Finding the Fourth Proportional to 12,361.70, 18,452.63 and 11,448.02

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Solution

The fourth proportional to 12,361.70, 18,452.63 and 11,448.02 is: 17,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.70 : 18,452.63 = 11,448.02 : x
  2. Step 2: Convert to fraction form
    12,361.70/18,452.63 = 11,448.02/x
  3. Step 3: Cross multiply
    12,361.70x = 18,452.63 × 11,448.02
  4. Step 4: Simplify right side
    12,361.70x = 211,245,927.79
  5. Step 5: Solve for x
    x = 211,245,927.79/12,361.70
  6. Step 6: Final answer
    x = 17,088.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.