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Finding the Fourth Proportional to 14,226.62, 19,633.34 and 7,938.99

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Solution

The fourth proportional to 14,226.62, 19,633.34 and 7,938.99 is: 10,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.62 : 19,633.34 = 7,938.99 : x
  2. Step 2: Convert to fraction form
    14,226.62/19,633.34 = 7,938.99/x
  3. Step 3: Cross multiply
    14,226.62x = 19,633.34 × 7,938.99
  4. Step 4: Simplify right side
    14,226.62x = 155,868,909.77
  5. Step 5: Solve for x
    x = 155,868,909.77/14,226.62
  6. Step 6: Final answer
    x = 10,956.15

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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.