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Finding the Fourth Proportional to 37.64, 56.43 and 14.50

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Solution

The fourth proportional to 37.64, 56.43 and 14.50 is: 21.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.64 : 56.43 = 14.50 : x
  2. Step 2: Convert to fraction form
    37.64/56.43 = 14.50/x
  3. Step 3: Cross multiply
    37.64x = 56.43 × 14.50
  4. Step 4: Simplify right side
    37.64x = 818.24
  5. Step 5: Solve for x
    x = 818.24/37.64
  6. Step 6: Final answer
    x = 21.74

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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.