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Finding the Fourth Proportional to 7,940.01, 10,950.87 and 5,424.96

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Solution

The fourth proportional to 7,940.01, 10,950.87 and 5,424.96 is: 7,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.01 : 10,950.87 = 5,424.96 : x
  2. Step 2: Convert to fraction form
    7,940.01/10,950.87 = 5,424.96/x
  3. Step 3: Cross multiply
    7,940.01x = 10,950.87 × 5,424.96
  4. Step 4: Simplify right side
    7,940.01x = 59,408,031.72
  5. Step 5: Solve for x
    x = 59,408,031.72/7,940.01
  6. Step 6: Final answer
    x = 7,482.11

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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.