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Finding the Fourth Proportional to 55,543, 76,649.34 and 30,392.50

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Solution

The fourth proportional to 55,543, 76,649.34 and 30,392.50 is: 41,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,543 : 76,649.34 = 30,392.50 : x
  2. Step 2: Convert to fraction form
    55,543/76,649.34 = 30,392.50/x
  3. Step 3: Cross multiply
    55,543x = 76,649.34 × 30,392.50
  4. Step 4: Simplify right side
    55,543x = 2,329,565,065.95
  5. Step 5: Solve for x
    x = 2,329,565,065.95/55,543
  6. Step 6: Final answer
    x = 41,941.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.