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Finding the Fourth Proportional to 29,685.54, 44,512.08 and 12,140.94

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Solution

The fourth proportional to 29,685.54, 44,512.08 and 12,140.94 is: 18,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,685.54 : 44,512.08 = 12,140.94 : x
  2. Step 2: Convert to fraction form
    29,685.54/44,512.08 = 12,140.94/x
  3. Step 3: Cross multiply
    29,685.54x = 44,512.08 × 12,140.94
  4. Step 4: Simplify right side
    29,685.54x = 540,418,492.56
  5. Step 5: Solve for x
    x = 540,418,492.56/29,685.54
  6. Step 6: Final answer
    x = 18,204.77

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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.