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Finding the Fourth Proportional to 14,759.87, 20,367.88 and 8,045.48

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Solution

The fourth proportional to 14,759.87, 20,367.88 and 8,045.48 is: 11,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.87 : 20,367.88 = 8,045.48 : x
  2. Step 2: Convert to fraction form
    14,759.87/20,367.88 = 8,045.48/x
  3. Step 3: Cross multiply
    14,759.87x = 20,367.88 × 8,045.48
  4. Step 4: Simplify right side
    14,759.87x = 163,869,401.99
  5. Step 5: Solve for x
    x = 163,869,401.99/14,759.87
  6. Step 6: Final answer
    x = 11,102.36

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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.