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Finding the Fourth Proportional to 43,697.76, 65,405.64 and 22,608.76

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Solution

The fourth proportional to 43,697.76, 65,405.64 and 22,608.76 is: 33,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,697.76 : 65,405.64 = 22,608.76 : x
  2. Step 2: Convert to fraction form
    43,697.76/65,405.64 = 22,608.76/x
  3. Step 3: Cross multiply
    43,697.76x = 65,405.64 × 22,608.76
  4. Step 4: Simplify right side
    43,697.76x = 1,478,740,417.41
  5. Step 5: Solve for x
    x = 1,478,740,417.41/43,697.76
  6. Step 6: Final answer
    x = 33,840.19

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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.