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Finding the Fourth Proportional to 38,730.70, 58,094.85 and 11,028.70

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Solution

The fourth proportional to 38,730.70, 58,094.85 and 11,028.70 is: 16,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730.70 : 58,094.85 = 11,028.70 : x
  2. Step 2: Convert to fraction form
    38,730.70/58,094.85 = 11,028.70/x
  3. Step 3: Cross multiply
    38,730.70x = 58,094.85 × 11,028.70
  4. Step 4: Simplify right side
    38,730.70x = 640,710,672.20
  5. Step 5: Solve for x
    x = 640,710,672.20/38,730.70
  6. Step 6: Final answer
    x = 16,542.71

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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.