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Finding the Fourth Proportional to 9,674.40, 14,529.20 and 8,464.80

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Solution

The fourth proportional to 9,674.40, 14,529.20 and 8,464.80 is: 12,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,674.40 : 14,529.20 = 8,464.80 : x
  2. Step 2: Convert to fraction form
    9,674.40/14,529.20 = 8,464.80/x
  3. Step 3: Cross multiply
    9,674.40x = 14,529.20 × 8,464.80
  4. Step 4: Simplify right side
    9,674.40x = 122,986,772.16
  5. Step 5: Solve for x
    x = 122,986,772.16/9,674.40
  6. Step 6: Final answer
    x = 12,712.60

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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.