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Finding the Fourth Proportional to 11,754.58, 17,631.98 and 2,989.49

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Solution

The fourth proportional to 11,754.58, 17,631.98 and 2,989.49 is: 4,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.58 : 17,631.98 = 2,989.49 : x
  2. Step 2: Convert to fraction form
    11,754.58/17,631.98 = 2,989.49/x
  3. Step 3: Cross multiply
    11,754.58x = 17,631.98 × 2,989.49
  4. Step 4: Simplify right side
    11,754.58x = 52,710,612.94
  5. Step 5: Solve for x
    x = 52,710,612.94/11,754.58
  6. Step 6: Final answer
    x = 4,484.26

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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.