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Finding the Fourth Proportional to 12,081.74, 16,668.78 and 7,303.14

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Solution

The fourth proportional to 12,081.74, 16,668.78 and 7,303.14 is: 10,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.74 : 16,668.78 = 7,303.14 : x
  2. Step 2: Convert to fraction form
    12,081.74/16,668.78 = 7,303.14/x
  3. Step 3: Cross multiply
    12,081.74x = 16,668.78 × 7,303.14
  4. Step 4: Simplify right side
    12,081.74x = 121,734,433.97
  5. Step 5: Solve for x
    x = 121,734,433.97/12,081.74
  6. Step 6: Final answer
    x = 10,075.91

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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.