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Finding the Fourth Proportional to 7,010.55, 9,674.20 and 3,985.27

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Solution

The fourth proportional to 7,010.55, 9,674.20 and 3,985.27 is: 5,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.55 : 9,674.20 = 3,985.27 : x
  2. Step 2: Convert to fraction form
    7,010.55/9,674.20 = 3,985.27/x
  3. Step 3: Cross multiply
    7,010.55x = 9,674.20 × 3,985.27
  4. Step 4: Simplify right side
    7,010.55x = 38,554,299.03
  5. Step 5: Solve for x
    x = 38,554,299.03/7,010.55
  6. Step 6: Final answer
    x = 5,499.47

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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.