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Finding the Fourth Proportional to 56,411.64, 84,600.42 and 16,958.28

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Solution

The fourth proportional to 56,411.64, 84,600.42 and 16,958.28 is: 25,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,411.64 : 84,600.42 = 16,958.28 : x
  2. Step 2: Convert to fraction form
    56,411.64/84,600.42 = 16,958.28/x
  3. Step 3: Cross multiply
    56,411.64x = 84,600.42 × 16,958.28
  4. Step 4: Simplify right side
    56,411.64x = 1,434,677,610.48
  5. Step 5: Solve for x
    x = 1,434,677,610.48/56,411.64
  6. Step 6: Final answer
    x = 25,432.30

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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.