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Finding the Fourth Proportional to 7,207.88, 9,949.10 and 4,224.69

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Solution

The fourth proportional to 7,207.88, 9,949.10 and 4,224.69 is: 5,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.88 : 9,949.10 = 4,224.69 : x
  2. Step 2: Convert to fraction form
    7,207.88/9,949.10 = 4,224.69/x
  3. Step 3: Cross multiply
    7,207.88x = 9,949.10 × 4,224.69
  4. Step 4: Simplify right side
    7,207.88x = 42,031,842.16
  5. Step 5: Solve for x
    x = 42,031,842.16/7,207.88
  6. Step 6: Final answer
    x = 5,831.38

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Half scale
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Double scale
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Similar ratio
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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.