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Finding the Fourth Proportional to 12,114.14, 16,716.02 and 7,074.70

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Solution

The fourth proportional to 12,114.14, 16,716.02 and 7,074.70 is: 9,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.14 : 16,716.02 = 7,074.70 : x
  2. Step 2: Convert to fraction form
    12,114.14/16,716.02 = 7,074.70/x
  3. Step 3: Cross multiply
    12,114.14x = 16,716.02 × 7,074.70
  4. Step 4: Simplify right side
    12,114.14x = 118,260,789.33
  5. Step 5: Solve for x
    x = 118,260,789.33/12,114.14
  6. Step 6: Final answer
    x = 9,762.21

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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.