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Finding the Fourth Proportional to 19,056.27, 28,584.41 and 7,956.90

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Solution

The fourth proportional to 19,056.27, 28,584.41 and 7,956.90 is: 11,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.27 : 28,584.41 = 7,956.90 : x
  2. Step 2: Convert to fraction form
    19,056.27/28,584.41 = 7,956.90/x
  3. Step 3: Cross multiply
    19,056.27x = 28,584.41 × 7,956.90
  4. Step 4: Simplify right side
    19,056.27x = 227,443,291.93
  5. Step 5: Solve for x
    x = 227,443,291.93/19,056.27
  6. Step 6: Final answer
    x = 11,935.35

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Similar ratio
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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.