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Finding the Fourth Proportional to 38,672.85, 57,981.60 and 14,960.10

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Solution

The fourth proportional to 38,672.85, 57,981.60 and 14,960.10 is: 22,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.85 : 57,981.60 = 14,960.10 : x
  2. Step 2: Convert to fraction form
    38,672.85/57,981.60 = 14,960.10/x
  3. Step 3: Cross multiply
    38,672.85x = 57,981.60 × 14,960.10
  4. Step 4: Simplify right side
    38,672.85x = 867,410,534.16
  5. Step 5: Solve for x
    x = 867,410,534.16/38,672.85
  6. Step 6: Final answer
    x = 22,429.44

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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.