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Finding the Fourth Proportional to 30,672.59, 46,014.21 and 11,962.80

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Solution

The fourth proportional to 30,672.59, 46,014.21 and 11,962.80 is: 17,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.59 : 46,014.21 = 11,962.80 : x
  2. Step 2: Convert to fraction form
    30,672.59/46,014.21 = 11,962.80/x
  3. Step 3: Cross multiply
    30,672.59x = 46,014.21 × 11,962.80
  4. Step 4: Simplify right side
    30,672.59x = 550,458,791.39
  5. Step 5: Solve for x
    x = 550,458,791.39/30,672.59
  6. Step 6: Final answer
    x = 17,946.28

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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.