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Finding the Fourth Proportional to 28,793.52, 43,153.20 and 13,973.76

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Solution

The fourth proportional to 28,793.52, 43,153.20 and 13,973.76 is: 20,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.52 : 43,153.20 = 13,973.76 : x
  2. Step 2: Convert to fraction form
    28,793.52/43,153.20 = 13,973.76/x
  3. Step 3: Cross multiply
    28,793.52x = 43,153.20 × 13,973.76
  4. Step 4: Simplify right side
    28,793.52x = 603,012,460.03
  5. Step 5: Solve for x
    x = 603,012,460.03/28,793.52
  6. Step 6: Final answer
    x = 20,942.64

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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.