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Finding the Fourth Proportional to 14,617.92, 21,930.18 and 4,623.28

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Solution

The fourth proportional to 14,617.92, 21,930.18 and 4,623.28 is: 6,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,617.92 : 21,930.18 = 4,623.28 : x
  2. Step 2: Convert to fraction form
    14,617.92/21,930.18 = 4,623.28/x
  3. Step 3: Cross multiply
    14,617.92x = 21,930.18 × 4,623.28
  4. Step 4: Simplify right side
    14,617.92x = 101,389,282.87
  5. Step 5: Solve for x
    x = 101,389,282.87/14,617.92
  6. Step 6: Final answer
    x = 6,935.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.