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Finding the Fourth Proportional to 14,914.04, 20,580.94 and 8,199.66

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Solution

The fourth proportional to 14,914.04, 20,580.94 and 8,199.66 is: 11,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,914.04 : 20,580.94 = 8,199.66 : x
  2. Step 2: Convert to fraction form
    14,914.04/20,580.94 = 8,199.66/x
  3. Step 3: Cross multiply
    14,914.04x = 20,580.94 × 8,199.66
  4. Step 4: Simplify right side
    14,914.04x = 168,756,710.48
  5. Step 5: Solve for x
    x = 168,756,710.48/14,914.04
  6. Step 6: Final answer
    x = 11,315.29

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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.