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Finding the Fourth Proportional to 60,904.82, 91,372.95 and 18,783.95

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Solution

The fourth proportional to 60,904.82, 91,372.95 and 18,783.95 is: 28,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,904.82 : 91,372.95 = 18,783.95 : x
  2. Step 2: Convert to fraction form
    60,904.82/91,372.95 = 18,783.95/x
  3. Step 3: Cross multiply
    60,904.82x = 91,372.95 × 18,783.95
  4. Step 4: Simplify right side
    60,904.82x = 1,716,344,467.29
  5. Step 5: Solve for x
    x = 1,716,344,467.29/60,904.82
  6. Step 6: Final answer
    x = 28,180.77

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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.