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Finding the Fourth Proportional to 62,407.78, 93,620.46 and 20,274.36

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Solution

The fourth proportional to 62,407.78, 93,620.46 and 20,274.36 is: 30,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,407.78 : 93,620.46 = 20,274.36 : x
  2. Step 2: Convert to fraction form
    62,407.78/93,620.46 = 20,274.36/x
  3. Step 3: Cross multiply
    62,407.78x = 93,620.46 × 20,274.36
  4. Step 4: Simplify right side
    62,407.78x = 1,898,094,909.41
  5. Step 5: Solve for x
    x = 1,898,094,909.41/62,407.78
  6. Step 6: Final answer
    x = 30,414.40

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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.