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Finding the Fourth Proportional to 7,168.61, 9,890.74 and 4,024.73

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Solution

The fourth proportional to 7,168.61, 9,890.74 and 4,024.73 is: 5,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.61 : 9,890.74 = 4,024.73 : x
  2. Step 2: Convert to fraction form
    7,168.61/9,890.74 = 4,024.73/x
  3. Step 3: Cross multiply
    7,168.61x = 9,890.74 × 4,024.73
  4. Step 4: Simplify right side
    7,168.61x = 39,807,587.76
  5. Step 5: Solve for x
    x = 39,807,587.76/7,168.61
  6. Step 6: Final answer
    x = 5,553.04

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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.