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Finding the Fourth Proportional to 56,359.50, 84,552.21 and 19,423.50

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Solution

The fourth proportional to 56,359.50, 84,552.21 and 19,423.50 is: 29,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.50 : 84,552.21 = 19,423.50 : x
  2. Step 2: Convert to fraction form
    56,359.50/84,552.21 = 19,423.50/x
  3. Step 3: Cross multiply
    56,359.50x = 84,552.21 × 19,423.50
  4. Step 4: Simplify right side
    56,359.50x = 1,642,299,850.94
  5. Step 5: Solve for x
    x = 1,642,299,850.94/56,359.50
  6. Step 6: Final answer
    x = 29,139.72

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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.