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Finding the Fourth Proportional to 56,368.94, 84,563.15 and 18,932.63

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Solution

The fourth proportional to 56,368.94, 84,563.15 and 18,932.63 is: 28,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,368.94 : 84,563.15 = 18,932.63 : x
  2. Step 2: Convert to fraction form
    56,368.94/84,563.15 = 18,932.63/x
  3. Step 3: Cross multiply
    56,368.94x = 84,563.15 × 18,932.63
  4. Step 4: Simplify right side
    56,368.94x = 1,601,002,313.11
  5. Step 5: Solve for x
    x = 1,601,002,313.11/56,368.94
  6. Step 6: Final answer
    x = 28,402.21

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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.