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Finding the Fourth Proportional to 31,120.40, 46,680.60 and 27,232.40

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Solution

The fourth proportional to 31,120.40, 46,680.60 and 27,232.40 is: 40,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.40 : 46,680.60 = 27,232.40 : x
  2. Step 2: Convert to fraction form
    31,120.40/46,680.60 = 27,232.40/x
  3. Step 3: Cross multiply
    31,120.40x = 46,680.60 × 27,232.40
  4. Step 4: Simplify right side
    31,120.40x = 1,271,224,771.44
  5. Step 5: Solve for x
    x = 1,271,224,771.44/31,120.40
  6. Step 6: Final answer
    x = 40,848.60

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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.