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Finding the Fourth Proportional to 42,679.95, 63,904.73 and 42,679.95

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Solution

The fourth proportional to 42,679.95, 63,904.73 and 42,679.95 is: 63,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.95 : 63,904.73 = 42,679.95 : x
  2. Step 2: Convert to fraction form
    42,679.95/63,904.73 = 42,679.95/x
  3. Step 3: Cross multiply
    42,679.95x = 63,904.73 × 42,679.95
  4. Step 4: Simplify right side
    42,679.95x = 2,727,450,467.76
  5. Step 5: Solve for x
    x = 2,727,450,467.76/42,679.95
  6. Step 6: Final answer
    x = 63,904.73

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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.