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Finding the Fourth Proportional to 16,913.25, 23,339.72 and 9,359.90

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Solution

The fourth proportional to 16,913.25, 23,339.72 and 9,359.90 is: 12,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,913.25 : 23,339.72 = 9,359.90 : x
  2. Step 2: Convert to fraction form
    16,913.25/23,339.72 = 9,359.90/x
  3. Step 3: Cross multiply
    16,913.25x = 23,339.72 × 9,359.90
  4. Step 4: Simplify right side
    16,913.25x = 218,457,455.69
  5. Step 5: Solve for x
    x = 218,457,455.69/16,913.25
  6. Step 6: Final answer
    x = 12,916.35

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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.