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Finding the Fourth Proportional to 16,989.03, 23,443.74 and 9,435.38

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Solution

The fourth proportional to 16,989.03, 23,443.74 and 9,435.38 is: 13,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.03 : 23,443.74 = 9,435.38 : x
  2. Step 2: Convert to fraction form
    16,989.03/23,443.74 = 9,435.38/x
  3. Step 3: Cross multiply
    16,989.03x = 23,443.74 × 9,435.38
  4. Step 4: Simplify right side
    16,989.03x = 221,200,478.30
  5. Step 5: Solve for x
    x = 221,200,478.30/16,989.03
  6. Step 6: Final answer
    x = 13,020.19

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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.