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Finding the Fourth Proportional to 67,907.76, 93,673.44 and 47,793.84

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Solution

The fourth proportional to 67,907.76, 93,673.44 and 47,793.84 is: 65,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,907.76 : 93,673.44 = 47,793.84 : x
  2. Step 2: Convert to fraction form
    67,907.76/93,673.44 = 47,793.84/x
  3. Step 3: Cross multiply
    67,907.76x = 93,673.44 × 47,793.84
  4. Step 4: Simplify right side
    67,907.76x = 4,477,013,403.61
  5. Step 5: Solve for x
    x = 4,477,013,403.61/67,907.76
  6. Step 6: Final answer
    x = 65,927.86

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Why These Related Problems?

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