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Finding the Fourth Proportional to 54,656.40, 81,989.40 and 16,714.24

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Solution

The fourth proportional to 54,656.40, 81,989.40 and 16,714.24 is: 25,072.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,656.40 : 81,989.40 = 16,714.24 : x
  2. Step 2: Convert to fraction form
    54,656.40/81,989.40 = 16,714.24/x
  3. Step 3: Cross multiply
    54,656.40x = 81,989.40 × 16,714.24
  4. Step 4: Simplify right side
    54,656.40x = 1,370,390,509.06
  5. Step 5: Solve for x
    x = 1,370,390,509.06/54,656.40
  6. Step 6: Final answer
    x = 25,072.83

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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.