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Finding the Fourth Proportional to 12,922.32, 19,392.08 and 4,714.32

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Solution

The fourth proportional to 12,922.32, 19,392.08 and 4,714.32 is: 7,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.32 : 19,392.08 = 4,714.32 : x
  2. Step 2: Convert to fraction form
    12,922.32/19,392.08 = 4,714.32/x
  3. Step 3: Cross multiply
    12,922.32x = 19,392.08 × 4,714.32
  4. Step 4: Simplify right side
    12,922.32x = 91,420,470.59
  5. Step 5: Solve for x
    x = 91,420,470.59/12,922.32
  6. Step 6: Final answer
    x = 7,074.62

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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.