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Finding the Fourth Proportional to 9,605.70, 13,257.81 and 5,630.22

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Solution

The fourth proportional to 9,605.70, 13,257.81 and 5,630.22 is: 7,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.70 : 13,257.81 = 5,630.22 : x
  2. Step 2: Convert to fraction form
    9,605.70/13,257.81 = 5,630.22/x
  3. Step 3: Cross multiply
    9,605.70x = 13,257.81 × 5,630.22
  4. Step 4: Simplify right side
    9,605.70x = 74,644,387.02
  5. Step 5: Solve for x
    x = 74,644,387.02/9,605.70
  6. Step 6: Final answer
    x = 7,770.84

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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.