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Finding the Fourth Proportional to 4,909.17, 7,308.24 and 4,879.99

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Solution

The fourth proportional to 4,909.17, 7,308.24 and 4,879.99 is: 7,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.17 : 7,308.24 = 4,879.99 : x
  2. Step 2: Convert to fraction form
    4,909.17/7,308.24 = 4,879.99/x
  3. Step 3: Cross multiply
    4,909.17x = 7,308.24 × 4,879.99
  4. Step 4: Simplify right side
    4,909.17x = 35,664,101.58
  5. Step 5: Solve for x
    x = 35,664,101.58/4,909.17
  6. Step 6: Final answer
    x = 7,264.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.