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Finding the Fourth Proportional to 82,957.44, 124,436.57 and 20,627.94

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Solution

The fourth proportional to 82,957.44, 124,436.57 and 20,627.94 is: 30,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,957.44 : 124,436.57 = 20,627.94 : x
  2. Step 2: Convert to fraction form
    82,957.44/124,436.57 = 20,627.94/x
  3. Step 3: Cross multiply
    82,957.44x = 124,436.57 × 20,627.94
  4. Step 4: Simplify right side
    82,957.44x = 2,566,869,996.63
  5. Step 5: Solve for x
    x = 2,566,869,996.63/82,957.44
  6. Step 6: Final answer
    x = 30,942.01

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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.