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Finding the Fourth Proportional to 6,303.67, 9,455.50 and 1,921.09

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Solution

The fourth proportional to 6,303.67, 9,455.50 and 1,921.09 is: 2,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,303.67 : 9,455.50 = 1,921.09 : x
  2. Step 2: Convert to fraction form
    6,303.67/9,455.50 = 1,921.09/x
  3. Step 3: Cross multiply
    6,303.67x = 9,455.50 × 1,921.09
  4. Step 4: Simplify right side
    6,303.67x = 18,164,819.22
  5. Step 5: Solve for x
    x = 18,164,819.22/6,303.67
  6. Step 6: Final answer
    x = 2,881.63

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.