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Finding the Fourth Proportional to 43,879.16, 65,806.17 and 14,299.58

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Solution

The fourth proportional to 43,879.16, 65,806.17 and 14,299.58 is: 21,445.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,879.16 : 65,806.17 = 14,299.58 : x
  2. Step 2: Convert to fraction form
    43,879.16/65,806.17 = 14,299.58/x
  3. Step 3: Cross multiply
    43,879.16x = 65,806.17 × 14,299.58
  4. Step 4: Simplify right side
    43,879.16x = 941,000,263.38
  5. Step 5: Solve for x
    x = 941,000,263.38/43,879.16
  6. Step 6: Final answer
    x = 21,445.27

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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.