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Finding the Fourth Proportional to 43,898.96, 65,858.92 and 14,316.82

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Solution

The fourth proportional to 43,898.96, 65,858.92 and 14,316.82 is: 21,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,898.96 : 65,858.92 = 14,316.82 : x
  2. Step 2: Convert to fraction form
    43,898.96/65,858.92 = 14,316.82/x
  3. Step 3: Cross multiply
    43,898.96x = 65,858.92 × 14,316.82
  4. Step 4: Simplify right side
    43,898.96x = 942,890,303.03
  5. Step 5: Solve for x
    x = 942,890,303.03/43,898.96
  6. Step 6: Final answer
    x = 21,478.65

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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.