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Finding the Fourth Proportional to 12,213.52, 16,853.52 and 6,908.80

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Solution

The fourth proportional to 12,213.52, 16,853.52 and 6,908.80 is: 9,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.52 : 16,853.52 = 6,908.80 : x
  2. Step 2: Convert to fraction form
    12,213.52/16,853.52 = 6,908.80/x
  3. Step 3: Cross multiply
    12,213.52x = 16,853.52 × 6,908.80
  4. Step 4: Simplify right side
    12,213.52x = 116,437,598.98
  5. Step 5: Solve for x
    x = 116,437,598.98/12,213.52
  6. Step 6: Final answer
    x = 9,533.50

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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.