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Finding the Fourth Proportional to 5,608.62, 7,739.98 and 3,124.62

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Solution

The fourth proportional to 5,608.62, 7,739.98 and 3,124.62 is: 4,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.62 : 7,739.98 = 3,124.62 : x
  2. Step 2: Convert to fraction form
    5,608.62/7,739.98 = 3,124.62/x
  3. Step 3: Cross multiply
    5,608.62x = 7,739.98 × 3,124.62
  4. Step 4: Simplify right side
    5,608.62x = 24,184,496.31
  5. Step 5: Solve for x
    x = 24,184,496.31/5,608.62
  6. Step 6: Final answer
    x = 4,312.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.