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Finding the Fourth Proportional to 8,426.92, 11,629.07 and 4,650.12

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Solution

The fourth proportional to 8,426.92, 11,629.07 and 4,650.12 is: 6,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.92 : 11,629.07 = 4,650.12 : x
  2. Step 2: Convert to fraction form
    8,426.92/11,629.07 = 4,650.12/x
  3. Step 3: Cross multiply
    8,426.92x = 11,629.07 × 4,650.12
  4. Step 4: Simplify right side
    8,426.92x = 54,076,570.99
  5. Step 5: Solve for x
    x = 54,076,570.99/8,426.92
  6. Step 6: Final answer
    x = 6,417.12

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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.