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Finding the Fourth Proportional to 14,709.66, 20,302.02 and 8,744.70

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Solution

The fourth proportional to 14,709.66, 20,302.02 and 8,744.70 is: 12,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.66 : 20,302.02 = 8,744.70 : x
  2. Step 2: Convert to fraction form
    14,709.66/20,302.02 = 8,744.70/x
  3. Step 3: Cross multiply
    14,709.66x = 20,302.02 × 8,744.70
  4. Step 4: Simplify right side
    14,709.66x = 177,535,074.29
  5. Step 5: Solve for x
    x = 177,535,074.29/14,709.66
  6. Step 6: Final answer
    x = 12,069.28

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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.