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Finding the Fourth Proportional to 21,046.19, 29,046.30 and 12,093.67

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Solution

The fourth proportional to 21,046.19, 29,046.30 and 12,093.67 is: 16,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.19 : 29,046.30 = 12,093.67 : x
  2. Step 2: Convert to fraction form
    21,046.19/29,046.30 = 12,093.67/x
  3. Step 3: Cross multiply
    21,046.19x = 29,046.30 × 12,093.67
  4. Step 4: Simplify right side
    21,046.19x = 351,276,221.69
  5. Step 5: Solve for x
    x = 351,276,221.69/21,046.19
  6. Step 6: Final answer
    x = 16,690.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.