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Finding the Fourth Proportional to 30,376.64, 45,568.20 and 12,848.24

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Solution

The fourth proportional to 30,376.64, 45,568.20 and 12,848.24 is: 19,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.64 : 45,568.20 = 12,848.24 : x
  2. Step 2: Convert to fraction form
    30,376.64/45,568.20 = 12,848.24/x
  3. Step 3: Cross multiply
    30,376.64x = 45,568.20 × 12,848.24
  4. Step 4: Simplify right side
    30,376.64x = 585,471,169.97
  5. Step 5: Solve for x
    x = 585,471,169.97/30,376.64
  6. Step 6: Final answer
    x = 19,273.73

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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.