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Finding the Fourth Proportional to 2,637.37, 3,956.66 and 993.95

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Solution

The fourth proportional to 2,637.37, 3,956.66 and 993.95 is: 1,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.37 : 3,956.66 = 993.95 : x
  2. Step 2: Convert to fraction form
    2,637.37/3,956.66 = 993.95/x
  3. Step 3: Cross multiply
    2,637.37x = 3,956.66 × 993.95
  4. Step 4: Simplify right side
    2,637.37x = 3,932,701.18
  5. Step 5: Solve for x
    x = 3,932,701.18/2,637.37
  6. Step 6: Final answer
    x = 1,491.15

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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.