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Finding the Fourth Proportional to 28,861.24, 43,291.86 and 6,973.24

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Solution

The fourth proportional to 28,861.24, 43,291.86 and 6,973.24 is: 10,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.24 : 43,291.86 = 6,973.24 : x
  2. Step 2: Convert to fraction form
    28,861.24/43,291.86 = 6,973.24/x
  3. Step 3: Cross multiply
    28,861.24x = 43,291.86 × 6,973.24
  4. Step 4: Simplify right side
    28,861.24x = 301,884,529.83
  5. Step 5: Solve for x
    x = 301,884,529.83/28,861.24
  6. Step 6: Final answer
    x = 10,459.86

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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.