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Finding the Fourth Proportional to 14,657.50, 20,227.35 and 8,369.88

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Solution

The fourth proportional to 14,657.50, 20,227.35 and 8,369.88 is: 11,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.50 : 20,227.35 = 8,369.88 : x
  2. Step 2: Convert to fraction form
    14,657.50/20,227.35 = 8,369.88/x
  3. Step 3: Cross multiply
    14,657.50x = 20,227.35 × 8,369.88
  4. Step 4: Simplify right side
    14,657.50x = 169,300,492.22
  5. Step 5: Solve for x
    x = 169,300,492.22/14,657.50
  6. Step 6: Final answer
    x = 11,550.43

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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.