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Finding the Fourth Proportional to 56,112.63, 84,182.81 and 16,669.68

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Solution

The fourth proportional to 56,112.63, 84,182.81 and 16,669.68 is: 25,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112.63 : 84,182.81 = 16,669.68 : x
  2. Step 2: Convert to fraction form
    56,112.63/84,182.81 = 16,669.68/x
  3. Step 3: Cross multiply
    56,112.63x = 84,182.81 × 16,669.68
  4. Step 4: Simplify right side
    56,112.63x = 1,403,300,504.20
  5. Step 5: Solve for x
    x = 1,403,300,504.20/56,112.63
  6. Step 6: Final answer
    x = 25,008.64

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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.