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Finding the Fourth Proportional to 4,945.95, 7,418.94 and 1,659.06

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Solution

The fourth proportional to 4,945.95, 7,418.94 and 1,659.06 is: 2,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.95 : 7,418.94 = 1,659.06 : x
  2. Step 2: Convert to fraction form
    4,945.95/7,418.94 = 1,659.06/x
  3. Step 3: Cross multiply
    4,945.95x = 7,418.94 × 1,659.06
  4. Step 4: Simplify right side
    4,945.95x = 12,308,466.60
  5. Step 5: Solve for x
    x = 12,308,466.60/4,945.95
  6. Step 6: Final answer
    x = 2,488.60

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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.