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Finding the Fourth Proportional to 60,407.81, 90,611.78 and 22,959.08

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Solution

The fourth proportional to 60,407.81, 90,611.78 and 22,959.08 is: 34,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,407.81 : 90,611.78 = 22,959.08 : x
  2. Step 2: Convert to fraction form
    60,407.81/90,611.78 = 22,959.08/x
  3. Step 3: Cross multiply
    60,407.81x = 90,611.78 × 22,959.08
  4. Step 4: Simplify right side
    60,407.81x = 2,080,363,105.96
  5. Step 5: Solve for x
    x = 2,080,363,105.96/60,407.81
  6. Step 6: Final answer
    x = 34,438.64

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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.