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Finding the Fourth Proportional to 7,239.50, 10,853.09 and 6,895.05

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Solution

The fourth proportional to 7,239.50, 10,853.09 and 6,895.05 is: 10,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.50 : 10,853.09 = 6,895.05 : x
  2. Step 2: Convert to fraction form
    7,239.50/10,853.09 = 6,895.05/x
  3. Step 3: Cross multiply
    7,239.50x = 10,853.09 × 6,895.05
  4. Step 4: Simplify right side
    7,239.50x = 74,832,598.20
  5. Step 5: Solve for x
    x = 74,832,598.20/7,239.50
  6. Step 6: Final answer
    x = 10,336.71

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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.