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Finding the Fourth Proportional to 7,229.10, 10,855.80 and 7,010.40

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Solution

The fourth proportional to 7,229.10, 10,855.80 and 7,010.40 is: 10,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.10 : 10,855.80 = 7,010.40 : x
  2. Step 2: Convert to fraction form
    7,229.10/10,855.80 = 7,010.40/x
  3. Step 3: Cross multiply
    7,229.10x = 10,855.80 × 7,010.40
  4. Step 4: Simplify right side
    7,229.10x = 76,103,500.32
  5. Step 5: Solve for x
    x = 76,103,500.32/7,229.10
  6. Step 6: Final answer
    x = 10,527.38

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1.5x scale

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.