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Finding the Fourth Proportional to 30,881.63, 46,384.43 and 18,425.96

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Solution

The fourth proportional to 30,881.63, 46,384.43 and 18,425.96 is: 27,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.63 : 46,384.43 = 18,425.96 : x
  2. Step 2: Convert to fraction form
    30,881.63/46,384.43 = 18,425.96/x
  3. Step 3: Cross multiply
    30,881.63x = 46,384.43 × 18,425.96
  4. Step 4: Simplify right side
    30,881.63x = 854,677,651.80
  5. Step 5: Solve for x
    x = 854,677,651.80/30,881.63
  6. Step 6: Final answer
    x = 27,675.92

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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.