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Finding the Fourth Proportional to 19,303.74, 28,964.84 and 10,876.96

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Solution

The fourth proportional to 19,303.74, 28,964.84 and 10,876.96 is: 16,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.74 : 28,964.84 = 10,876.96 : x
  2. Step 2: Convert to fraction form
    19,303.74/28,964.84 = 10,876.96/x
  3. Step 3: Cross multiply
    19,303.74x = 28,964.84 × 10,876.96
  4. Step 4: Simplify right side
    19,303.74x = 315,049,406.09
  5. Step 5: Solve for x
    x = 315,049,406.09/19,303.74
  6. Step 6: Final answer
    x = 16,320.64

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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.