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Finding the Fourth Proportional to 14,481.53, 21,737.65 and 12,826.40

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Solution

The fourth proportional to 14,481.53, 21,737.65 and 12,826.40 is: 19,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.53 : 21,737.65 = 12,826.40 : x
  2. Step 2: Convert to fraction form
    14,481.53/21,737.65 = 12,826.40/x
  3. Step 3: Cross multiply
    14,481.53x = 21,737.65 × 12,826.40
  4. Step 4: Simplify right side
    14,481.53x = 278,815,653.21
  5. Step 5: Solve for x
    x = 278,815,653.21/14,481.53
  6. Step 6: Final answer
    x = 19,253.20

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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.