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Finding the Fourth Proportional to 7,957.38, 10,980.44 and 4,420.38

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Solution

The fourth proportional to 7,957.38, 10,980.44 and 4,420.38 is: 6,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.38 : 10,980.44 = 4,420.38 : x
  2. Step 2: Convert to fraction form
    7,957.38/10,980.44 = 4,420.38/x
  3. Step 3: Cross multiply
    7,957.38x = 10,980.44 × 4,420.38
  4. Step 4: Simplify right side
    7,957.38x = 48,537,717.37
  5. Step 5: Solve for x
    x = 48,537,717.37/7,957.38
  6. Step 6: Final answer
    x = 6,099.71

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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.