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Finding the Fourth Proportional to 6,490.83, 8,951.36 and 4,816.41

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Solution

The fourth proportional to 6,490.83, 8,951.36 and 4,816.41 is: 6,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.83 : 8,951.36 = 4,816.41 : x
  2. Step 2: Convert to fraction form
    6,490.83/8,951.36 = 4,816.41/x
  3. Step 3: Cross multiply
    6,490.83x = 8,951.36 × 4,816.41
  4. Step 4: Simplify right side
    6,490.83x = 43,113,439.61
  5. Step 5: Solve for x
    x = 43,113,439.61/6,490.83
  6. Step 6: Final answer
    x = 6,642.20

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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.