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Finding the Fourth Proportional to 19,951.30, 29,924.55 and 8,263.30

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Solution

The fourth proportional to 19,951.30, 29,924.55 and 8,263.30 is: 12,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.30 : 29,924.55 = 8,263.30 : x
  2. Step 2: Convert to fraction form
    19,951.30/29,924.55 = 8,263.30/x
  3. Step 3: Cross multiply
    19,951.30x = 29,924.55 × 8,263.30
  4. Step 4: Simplify right side
    19,951.30x = 247,275,534.02
  5. Step 5: Solve for x
    x = 247,275,534.02/19,951.30
  6. Step 6: Final answer
    x = 12,393.96

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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.