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Finding the Fourth Proportional to 5,630.31, 7,770.84 and 3,362.21

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Solution

The fourth proportional to 5,630.31, 7,770.84 and 3,362.21 is: 4,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.31 : 7,770.84 = 3,362.21 : x
  2. Step 2: Convert to fraction form
    5,630.31/7,770.84 = 3,362.21/x
  3. Step 3: Cross multiply
    5,630.31x = 7,770.84 × 3,362.21
  4. Step 4: Simplify right side
    5,630.31x = 26,127,173.63
  5. Step 5: Solve for x
    x = 26,127,173.63/5,630.31
  6. Step 6: Final answer
    x = 4,640.45

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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.