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Finding the Fourth Proportional to 55,797.92, 83,699.76 and 14,245.28

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Solution

The fourth proportional to 55,797.92, 83,699.76 and 14,245.28 is: 21,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,797.92 : 83,699.76 = 14,245.28 : x
  2. Step 2: Convert to fraction form
    55,797.92/83,699.76 = 14,245.28/x
  3. Step 3: Cross multiply
    55,797.92x = 83,699.76 × 14,245.28
  4. Step 4: Simplify right side
    55,797.92x = 1,192,326,517.13
  5. Step 5: Solve for x
    x = 1,192,326,517.13/55,797.92
  6. Step 6: Final answer
    x = 21,368.66

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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.