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Finding the Fourth Proportional to 14,672.70, 21,994.65 and 7,656.30

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Solution

The fourth proportional to 14,672.70, 21,994.65 and 7,656.30 is: 11,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.70 : 21,994.65 = 7,656.30 : x
  2. Step 2: Convert to fraction form
    14,672.70/21,994.65 = 7,656.30/x
  3. Step 3: Cross multiply
    14,672.70x = 21,994.65 × 7,656.30
  4. Step 4: Simplify right side
    14,672.70x = 168,397,638.80
  5. Step 5: Solve for x
    x = 168,397,638.80/14,672.70
  6. Step 6: Final answer
    x = 11,476.94

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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.