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Finding the Fourth Proportional to 7,229.05, 9,903.53 and 6,959.18

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Solution

The fourth proportional to 7,229.05, 9,903.53 and 6,959.18 is: 9,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.05 : 9,903.53 = 6,959.18 : x
  2. Step 2: Convert to fraction form
    7,229.05/9,903.53 = 6,959.18/x
  3. Step 3: Cross multiply
    7,229.05x = 9,903.53 × 6,959.18
  4. Step 4: Simplify right side
    7,229.05x = 68,920,490.06
  5. Step 5: Solve for x
    x = 68,920,490.06/7,229.05
  6. Step 6: Final answer
    x = 9,533.83

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.