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Finding the Fourth Proportional to 11,816.84, 17,706.80 and 7,425.07

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Solution

The fourth proportional to 11,816.84, 17,706.80 and 7,425.07 is: 11,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.84 : 17,706.80 = 7,425.07 : x
  2. Step 2: Convert to fraction form
    11,816.84/17,706.80 = 7,425.07/x
  3. Step 3: Cross multiply
    11,816.84x = 17,706.80 × 7,425.07
  4. Step 4: Simplify right side
    11,816.84x = 131,474,261.61
  5. Step 5: Solve for x
    x = 131,474,261.61/11,816.84
  6. Step 6: Final answer
    x = 11,126.01

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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.