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Finding the Fourth Proportional to 43,437.80, 65,143.70 and 22,649.96

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Solution

The fourth proportional to 43,437.80, 65,143.70 and 22,649.96 is: 33,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,437.80 : 65,143.70 = 22,649.96 : x
  2. Step 2: Convert to fraction form
    43,437.80/65,143.70 = 22,649.96/x
  3. Step 3: Cross multiply
    43,437.80x = 65,143.70 × 22,649.96
  4. Step 4: Simplify right side
    43,437.80x = 1,475,502,199.25
  5. Step 5: Solve for x
    x = 1,475,502,199.25/43,437.80
  6. Step 6: Final answer
    x = 33,968.16

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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.