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Finding the Fourth Proportional to 6,466.70, 8,923.81 and 3,953.02

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Solution

The fourth proportional to 6,466.70, 8,923.81 and 3,953.02 is: 5,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.70 : 8,923.81 = 3,953.02 : x
  2. Step 2: Convert to fraction form
    6,466.70/8,923.81 = 3,953.02/x
  3. Step 3: Cross multiply
    6,466.70x = 8,923.81 × 3,953.02
  4. Step 4: Simplify right side
    6,466.70x = 35,275,999.41
  5. Step 5: Solve for x
    x = 35,275,999.41/6,466.70
  6. Step 6: Final answer
    x = 5,455.02

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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.