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Finding the Fourth Proportional to 62,520.44, 93,780.20 and 53,138.20

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Solution

The fourth proportional to 62,520.44, 93,780.20 and 53,138.20 is: 79,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,520.44 : 93,780.20 = 53,138.20 : x
  2. Step 2: Convert to fraction form
    62,520.44/93,780.20 = 53,138.20/x
  3. Step 3: Cross multiply
    62,520.44x = 93,780.20 × 53,138.20
  4. Step 4: Simplify right side
    62,520.44x = 4,983,311,023.64
  5. Step 5: Solve for x
    x = 4,983,311,023.64/62,520.44
  6. Step 6: Final answer
    x = 79,706.91

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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.