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Finding the Fourth Proportional to 8,374.48, 12,561.96 and 4,674.64

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Solution

The fourth proportional to 8,374.48, 12,561.96 and 4,674.64 is: 7,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.48 : 12,561.96 = 4,674.64 : x
  2. Step 2: Convert to fraction form
    8,374.48/12,561.96 = 4,674.64/x
  3. Step 3: Cross multiply
    8,374.48x = 12,561.96 × 4,674.64
  4. Step 4: Simplify right side
    8,374.48x = 58,722,640.69
  5. Step 5: Solve for x
    x = 58,722,640.69/8,374.48
  6. Step 6: Final answer
    x = 7,012.09

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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.