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Finding the Fourth Proportional to 3,619.71, 4,992.51 and 2,343.91

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Solution

The fourth proportional to 3,619.71, 4,992.51 and 2,343.91 is: 3,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.71 : 4,992.51 = 2,343.91 : x
  2. Step 2: Convert to fraction form
    3,619.71/4,992.51 = 2,343.91/x
  3. Step 3: Cross multiply
    3,619.71x = 4,992.51 × 2,343.91
  4. Step 4: Simplify right side
    3,619.71x = 11,701,994.11
  5. Step 5: Solve for x
    x = 11,701,994.11/3,619.71
  6. Step 6: Final answer
    x = 3,232.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.