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Finding the Fourth Proportional to 12,967.56, 19,454.04 and 4,201.79

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Solution

The fourth proportional to 12,967.56, 19,454.04 and 4,201.79 is: 6,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967.56 : 19,454.04 = 4,201.79 : x
  2. Step 2: Convert to fraction form
    12,967.56/19,454.04 = 4,201.79/x
  3. Step 3: Cross multiply
    12,967.56x = 19,454.04 × 4,201.79
  4. Step 4: Simplify right side
    12,967.56x = 81,741,693.46
  5. Step 5: Solve for x
    x = 81,741,693.46/12,967.56
  6. Step 6: Final answer
    x = 6,303.55

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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.