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Finding the Fourth Proportional to 8,674.26, 12,999.74 and 4,505.60

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Solution

The fourth proportional to 8,674.26, 12,999.74 and 4,505.60 is: 6,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.26 : 12,999.74 = 4,505.60 : x
  2. Step 2: Convert to fraction form
    8,674.26/12,999.74 = 4,505.60/x
  3. Step 3: Cross multiply
    8,674.26x = 12,999.74 × 4,505.60
  4. Step 4: Simplify right side
    8,674.26x = 58,571,541.02
  5. Step 5: Solve for x
    x = 58,571,541.02/8,674.26
  6. Step 6: Final answer
    x = 6,752.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.