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Finding the Fourth Proportional to 22,395.66, 30,905.36 and 12,324.10

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Solution

The fourth proportional to 22,395.66, 30,905.36 and 12,324.10 is: 17,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,395.66 : 30,905.36 = 12,324.10 : x
  2. Step 2: Convert to fraction form
    22,395.66/30,905.36 = 12,324.10/x
  3. Step 3: Cross multiply
    22,395.66x = 30,905.36 × 12,324.10
  4. Step 4: Simplify right side
    22,395.66x = 380,880,531.03
  5. Step 5: Solve for x
    x = 380,880,531.03/22,395.66
  6. Step 6: Final answer
    x = 17,006.89

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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.