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Finding the Fourth Proportional to 6,435.94, 8,883.78 and 3,784.13

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Solution

The fourth proportional to 6,435.94, 8,883.78 and 3,784.13 is: 5,223.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.94 : 8,883.78 = 3,784.13 : x
  2. Step 2: Convert to fraction form
    6,435.94/8,883.78 = 3,784.13/x
  3. Step 3: Cross multiply
    6,435.94x = 8,883.78 × 3,784.13
  4. Step 4: Simplify right side
    6,435.94x = 33,617,378.41
  5. Step 5: Solve for x
    x = 33,617,378.41/6,435.94
  6. Step 6: Final answer
    x = 5,223.39

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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.