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Finding the Fourth Proportional to 16,893.28, 23,312.28 and 9,339.08

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Solution

The fourth proportional to 16,893.28, 23,312.28 and 9,339.08 is: 12,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,893.28 : 23,312.28 = 9,339.08 : x
  2. Step 2: Convert to fraction form
    16,893.28/23,312.28 = 9,339.08/x
  3. Step 3: Cross multiply
    16,893.28x = 23,312.28 × 9,339.08
  4. Step 4: Simplify right side
    16,893.28x = 217,715,247.90
  5. Step 5: Solve for x
    x = 217,715,247.90/16,893.28
  6. Step 6: Final answer
    x = 12,887.68

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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.