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Finding the Fourth Proportional to 5,741.89, 8,608.95 and 1,992.70

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Solution

The fourth proportional to 5,741.89, 8,608.95 and 1,992.70 is: 2,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,741.89 : 8,608.95 = 1,992.70 : x
  2. Step 2: Convert to fraction form
    5,741.89/8,608.95 = 1,992.70/x
  3. Step 3: Cross multiply
    5,741.89x = 8,608.95 × 1,992.70
  4. Step 4: Simplify right side
    5,741.89x = 17,155,038.12
  5. Step 5: Solve for x
    x = 17,155,038.12/5,741.89
  6. Step 6: Final answer
    x = 2,987.70

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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.