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Finding the Fourth Proportional to 5,329.70, 7,358.14 and 4,738.60

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Solution

The fourth proportional to 5,329.70, 7,358.14 and 4,738.60 is: 6,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.70 : 7,358.14 = 4,738.60 : x
  2. Step 2: Convert to fraction form
    5,329.70/7,358.14 = 4,738.60/x
  3. Step 3: Cross multiply
    5,329.70x = 7,358.14 × 4,738.60
  4. Step 4: Simplify right side
    5,329.70x = 34,867,282.20
  5. Step 5: Solve for x
    x = 34,867,282.20/5,329.70
  6. Step 6: Final answer
    x = 6,542.07

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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.