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Finding the Fourth Proportional to 5,048.30, 7,579.74 and 4,406.78

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Solution

The fourth proportional to 5,048.30, 7,579.74 and 4,406.78 is: 6,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,048.30 : 7,579.74 = 4,406.78 : x
  2. Step 2: Convert to fraction form
    5,048.30/7,579.74 = 4,406.78/x
  3. Step 3: Cross multiply
    5,048.30x = 7,579.74 × 4,406.78
  4. Step 4: Simplify right side
    5,048.30x = 33,402,246.64
  5. Step 5: Solve for x
    x = 33,402,246.64/5,048.30
  6. Step 6: Final answer
    x = 6,616.53

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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.