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Finding the Fourth Proportional to 5,281.36, 7,930.24 and 5,047.62

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Solution

The fourth proportional to 5,281.36, 7,930.24 and 5,047.62 is: 7,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.36 : 7,930.24 = 5,047.62 : x
  2. Step 2: Convert to fraction form
    5,281.36/7,930.24 = 5,047.62/x
  3. Step 3: Cross multiply
    5,281.36x = 7,930.24 × 5,047.62
  4. Step 4: Simplify right side
    5,281.36x = 40,028,838.03
  5. Step 5: Solve for x
    x = 40,028,838.03/5,281.36
  6. Step 6: Final answer
    x = 7,579.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.