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Finding the Fourth Proportional to 9,536.80, 14,276.40 and 8,384.80

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Solution

The fourth proportional to 9,536.80, 14,276.40 and 8,384.80 is: 12,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,536.80 : 14,276.40 = 8,384.80 : x
  2. Step 2: Convert to fraction form
    9,536.80/14,276.40 = 8,384.80/x
  3. Step 3: Cross multiply
    9,536.80x = 14,276.40 × 8,384.80
  4. Step 4: Simplify right side
    9,536.80x = 119,704,758.72
  5. Step 5: Solve for x
    x = 119,704,758.72/9,536.80
  6. Step 6: Final answer
    x = 12,551.88

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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.