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Finding the Fourth Proportional to 14,439.96, 19,928.48 and 8,773.40

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Solution

The fourth proportional to 14,439.96, 19,928.48 and 8,773.40 is: 12,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.96 : 19,928.48 = 8,773.40 : x
  2. Step 2: Convert to fraction form
    14,439.96/19,928.48 = 8,773.40/x
  3. Step 3: Cross multiply
    14,439.96x = 19,928.48 × 8,773.40
  4. Step 4: Simplify right side
    14,439.96x = 174,840,382.92
  5. Step 5: Solve for x
    x = 174,840,382.92/14,439.96
  6. Step 6: Final answer
    x = 12,108.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.