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Finding the Fourth Proportional to 14,794.45, 20,416.45 and 8,079.95

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Solution

The fourth proportional to 14,794.45, 20,416.45 and 8,079.95 is: 11,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,794.45 : 20,416.45 = 8,079.95 : x
  2. Step 2: Convert to fraction form
    14,794.45/20,416.45 = 8,079.95/x
  3. Step 3: Cross multiply
    14,794.45x = 20,416.45 × 8,079.95
  4. Step 4: Simplify right side
    14,794.45x = 164,963,895.18
  5. Step 5: Solve for x
    x = 164,963,895.18/14,794.45
  6. Step 6: Final answer
    x = 11,150.39

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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.