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Finding the Fourth Proportional to 8,190.61, 11,303.36 and 4,464.61

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Solution

The fourth proportional to 8,190.61, 11,303.36 and 4,464.61 is: 6,161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.61 : 11,303.36 = 4,464.61 : x
  2. Step 2: Convert to fraction form
    8,190.61/11,303.36 = 4,464.61/x
  3. Step 3: Cross multiply
    8,190.61x = 11,303.36 × 4,464.61
  4. Step 4: Simplify right side
    8,190.61x = 50,465,094.09
  5. Step 5: Solve for x
    x = 50,465,094.09/8,190.61
  6. Step 6: Final answer
    x = 6,161.34

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Half scale
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Double scale
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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.