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Finding the Fourth Proportional to 7,013.93, 10,520.87 and 4,815.99

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Solution

The fourth proportional to 7,013.93, 10,520.87 and 4,815.99 is: 7,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.93 : 10,520.87 = 4,815.99 : x
  2. Step 2: Convert to fraction form
    7,013.93/10,520.87 = 4,815.99/x
  3. Step 3: Cross multiply
    7,013.93x = 10,520.87 × 4,815.99
  4. Step 4: Simplify right side
    7,013.93x = 50,668,380.63
  5. Step 5: Solve for x
    x = 50,668,380.63/7,013.93
  6. Step 6: Final answer
    x = 7,223.97

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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.