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Finding the Fourth Proportional to 14,105.70, 19,472.49 and 8,808.30

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Solution

The fourth proportional to 14,105.70, 19,472.49 and 8,808.30 is: 12,159.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.70 : 19,472.49 = 8,808.30 : x
  2. Step 2: Convert to fraction form
    14,105.70/19,472.49 = 8,808.30/x
  3. Step 3: Cross multiply
    14,105.70x = 19,472.49 × 8,808.30
  4. Step 4: Simplify right side
    14,105.70x = 171,519,533.67
  5. Step 5: Solve for x
    x = 171,519,533.67/14,105.70
  6. Step 6: Final answer
    x = 12,159.59

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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.