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Finding the Fourth Proportional to 14,520.79, 21,770.25 and 7,493.23

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Solution

The fourth proportional to 14,520.79, 21,770.25 and 7,493.23 is: 11,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.79 : 21,770.25 = 7,493.23 : x
  2. Step 2: Convert to fraction form
    14,520.79/21,770.25 = 7,493.23/x
  3. Step 3: Cross multiply
    14,520.79x = 21,770.25 × 7,493.23
  4. Step 4: Simplify right side
    14,520.79x = 163,129,490.41
  5. Step 5: Solve for x
    x = 163,129,490.41/14,520.79
  6. Step 6: Final answer
    x = 11,234.20

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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.