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Finding the Fourth Proportional to 16,953.17, 23,393.09 and 9,399.11

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Solution

The fourth proportional to 16,953.17, 23,393.09 and 9,399.11 is: 12,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.17 : 23,393.09 = 9,399.11 : x
  2. Step 2: Convert to fraction form
    16,953.17/23,393.09 = 9,399.11/x
  3. Step 3: Cross multiply
    16,953.17x = 23,393.09 × 9,399.11
  4. Step 4: Simplify right side
    16,953.17x = 219,874,062.19
  5. Step 5: Solve for x
    x = 219,874,062.19/16,953.17
  6. Step 6: Final answer
    x = 12,969.50

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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.