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Finding the Fourth Proportional to 56,483.20, 84,738.21 and 17,040.70

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Solution

The fourth proportional to 56,483.20, 84,738.21 and 17,040.70 is: 25,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,483.20 : 84,738.21 = 17,040.70 : x
  2. Step 2: Convert to fraction form
    56,483.20/84,738.21 = 17,040.70/x
  3. Step 3: Cross multiply
    56,483.20x = 84,738.21 × 17,040.70
  4. Step 4: Simplify right side
    56,483.20x = 1,443,998,415.15
  5. Step 5: Solve for x
    x = 1,443,998,415.15/56,483.20
  6. Step 6: Final answer
    x = 25,565.10

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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.