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Finding the Fourth Proportional to 4,793.40, 7,192.88 and 2,019.86

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Solution

The fourth proportional to 4,793.40, 7,192.88 and 2,019.86 is: 3,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.40 : 7,192.88 = 2,019.86 : x
  2. Step 2: Convert to fraction form
    4,793.40/7,192.88 = 2,019.86/x
  3. Step 3: Cross multiply
    4,793.40x = 7,192.88 × 2,019.86
  4. Step 4: Simplify right side
    4,793.40x = 14,528,613.63
  5. Step 5: Solve for x
    x = 14,528,613.63/4,793.40
  6. Step 6: Final answer
    x = 3,030.96

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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.