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Finding the Fourth Proportional to 56,381.28, 84,576.90 and 14,828.28

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Solution

The fourth proportional to 56,381.28, 84,576.90 and 14,828.28 is: 22,243.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,381.28 : 84,576.90 = 14,828.28 : x
  2. Step 2: Convert to fraction form
    56,381.28/84,576.90 = 14,828.28/x
  3. Step 3: Cross multiply
    56,381.28x = 84,576.90 × 14,828.28
  4. Step 4: Simplify right side
    56,381.28x = 1,254,129,954.73
  5. Step 5: Solve for x
    x = 1,254,129,954.73/56,381.28
  6. Step 6: Final answer
    x = 22,243.73

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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.