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Finding the Fourth Proportional to 30,995.51, 46,494.14 and 7,621.88

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Solution

The fourth proportional to 30,995.51, 46,494.14 and 7,621.88 is: 11,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,995.51 : 46,494.14 = 7,621.88 : x
  2. Step 2: Convert to fraction form
    30,995.51/46,494.14 = 7,621.88/x
  3. Step 3: Cross multiply
    30,995.51x = 46,494.14 × 7,621.88
  4. Step 4: Simplify right side
    30,995.51x = 354,372,485.20
  5. Step 5: Solve for x
    x = 354,372,485.20/30,995.51
  6. Step 6: Final answer
    x = 11,433.03

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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.