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Finding the Fourth Proportional to 5,283.88, 7,879.31 and 4,914.52

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Solution

The fourth proportional to 5,283.88, 7,879.31 and 4,914.52 is: 7,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.88 : 7,879.31 = 4,914.52 : x
  2. Step 2: Convert to fraction form
    5,283.88/7,879.31 = 4,914.52/x
  3. Step 3: Cross multiply
    5,283.88x = 7,879.31 × 4,914.52
  4. Step 4: Simplify right side
    5,283.88x = 38,723,026.58
  5. Step 5: Solve for x
    x = 38,723,026.58/5,283.88
  6. Step 6: Final answer
    x = 7,328.52

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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.