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Finding the Fourth Proportional to 14,951.66, 20,631.73 and 9,208.19

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Solution

The fourth proportional to 14,951.66, 20,631.73 and 9,208.19 is: 12,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.66 : 20,631.73 = 9,208.19 : x
  2. Step 2: Convert to fraction form
    14,951.66/20,631.73 = 9,208.19/x
  3. Step 3: Cross multiply
    14,951.66x = 20,631.73 × 9,208.19
  4. Step 4: Simplify right side
    14,951.66x = 189,980,889.87
  5. Step 5: Solve for x
    x = 189,980,889.87/14,951.66
  6. Step 6: Final answer
    x = 12,706.34

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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.