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Finding the Fourth Proportional to 12,055.65, 16,629.44 and 7,967.45

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Solution

The fourth proportional to 12,055.65, 16,629.44 and 7,967.45 is: 10,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.65 : 16,629.44 = 7,967.45 : x
  2. Step 2: Convert to fraction form
    12,055.65/16,629.44 = 7,967.45/x
  3. Step 3: Cross multiply
    12,055.65x = 16,629.44 × 7,967.45
  4. Step 4: Simplify right side
    12,055.65x = 132,494,108.74
  5. Step 5: Solve for x
    x = 132,494,108.74/12,055.65
  6. Step 6: Final answer
    x = 10,990.21

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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.