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Finding the Fourth Proportional to 7,358.58, 10,158.21 and 4,940.01

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Solution

The fourth proportional to 7,358.58, 10,158.21 and 4,940.01 is: 6,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.58 : 10,158.21 = 4,940.01 : x
  2. Step 2: Convert to fraction form
    7,358.58/10,158.21 = 4,940.01/x
  3. Step 3: Cross multiply
    7,358.58x = 10,158.21 × 4,940.01
  4. Step 4: Simplify right side
    7,358.58x = 50,181,658.98
  5. Step 5: Solve for x
    x = 50,181,658.98/7,358.58
  6. Step 6: Final answer
    x = 6,819.48

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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.