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Finding the Fourth Proportional to 60,216.81, 90,277.01 and 28,611.01

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Solution

The fourth proportional to 60,216.81, 90,277.01 and 28,611.01 is: 42,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,216.81 : 90,277.01 = 28,611.01 : x
  2. Step 2: Convert to fraction form
    60,216.81/90,277.01 = 28,611.01/x
  3. Step 3: Cross multiply
    60,216.81x = 90,277.01 × 28,611.01
  4. Step 4: Simplify right side
    60,216.81x = 2,582,916,435.88
  5. Step 5: Solve for x
    x = 2,582,916,435.88/60,216.81
  6. Step 6: Final answer
    x = 42,893.61

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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.