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Finding the Fourth Proportional to 38,473.94, 57,712.62 and 12,180.62

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Solution

The fourth proportional to 38,473.94, 57,712.62 and 12,180.62 is: 18,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,473.94 : 57,712.62 = 12,180.62 : x
  2. Step 2: Convert to fraction form
    38,473.94/57,712.62 = 12,180.62/x
  3. Step 3: Cross multiply
    38,473.94x = 57,712.62 × 12,180.62
  4. Step 4: Simplify right side
    38,473.94x = 702,975,493.42
  5. Step 5: Solve for x
    x = 702,975,493.42/38,473.94
  6. Step 6: Final answer
    x = 18,271.47

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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.