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Finding the Fourth Proportional to 9,881.36, 14,810.65 and 6,760.80

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Solution

The fourth proportional to 9,881.36, 14,810.65 and 6,760.80 is: 10,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.36 : 14,810.65 = 6,760.80 : x
  2. Step 2: Convert to fraction form
    9,881.36/14,810.65 = 6,760.80/x
  3. Step 3: Cross multiply
    9,881.36x = 14,810.65 × 6,760.80
  4. Step 4: Simplify right side
    9,881.36x = 100,131,825.62
  5. Step 5: Solve for x
    x = 100,131,825.62/9,881.36
  6. Step 6: Final answer
    x = 10,133.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.