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Finding the Fourth Proportional to 14,612.64, 21,930.84 and 5,853.84

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Solution

The fourth proportional to 14,612.64, 21,930.84 and 5,853.84 is: 8,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.64 : 21,930.84 = 5,853.84 : x
  2. Step 2: Convert to fraction form
    14,612.64/21,930.84 = 5,853.84/x
  3. Step 3: Cross multiply
    14,612.64x = 21,930.84 × 5,853.84
  4. Step 4: Simplify right side
    14,612.64x = 128,379,628.43
  5. Step 5: Solve for x
    x = 128,379,628.43/14,612.64
  6. Step 6: Final answer
    x = 8,785.52

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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.