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Finding the Fourth Proportional to 7,804.89, 10,770.30 and 4,267.42

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Solution

The fourth proportional to 7,804.89, 10,770.30 and 4,267.42 is: 5,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,804.89 : 10,770.30 = 4,267.42 : x
  2. Step 2: Convert to fraction form
    7,804.89/10,770.30 = 4,267.42/x
  3. Step 3: Cross multiply
    7,804.89x = 10,770.30 × 4,267.42
  4. Step 4: Simplify right side
    7,804.89x = 45,961,366.70
  5. Step 5: Solve for x
    x = 45,961,366.70/7,804.89
  6. Step 6: Final answer
    x = 5,888.79

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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.