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Finding the Fourth Proportional to 18,470.61, 27,706.73 and 6,777.45

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Solution

The fourth proportional to 18,470.61, 27,706.73 and 6,777.45 is: 10,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.61 : 27,706.73 = 6,777.45 : x
  2. Step 2: Convert to fraction form
    18,470.61/27,706.73 = 6,777.45/x
  3. Step 3: Cross multiply
    18,470.61x = 27,706.73 × 6,777.45
  4. Step 4: Simplify right side
    18,470.61x = 187,780,977.24
  5. Step 5: Solve for x
    x = 187,780,977.24/18,470.61
  6. Step 6: Final answer
    x = 10,166.47

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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.