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Finding the Fourth Proportional to 22,135.50, 30,547.26 and 12,704.94

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Solution

The fourth proportional to 22,135.50, 30,547.26 and 12,704.94 is: 17,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,135.50 : 30,547.26 = 12,704.94 : x
  2. Step 2: Convert to fraction form
    22,135.50/30,547.26 = 12,704.94/x
  3. Step 3: Cross multiply
    22,135.50x = 30,547.26 × 12,704.94
  4. Step 4: Simplify right side
    22,135.50x = 388,101,105.46
  5. Step 5: Solve for x
    x = 388,101,105.46/22,135.50
  6. Step 6: Final answer
    x = 17,532.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.