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Finding the Fourth Proportional to 60,950.95, 91,364.09 and 20,957.94

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Solution

The fourth proportional to 60,950.95, 91,364.09 and 20,957.94 is: 31,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,950.95 : 91,364.09 = 20,957.94 : x
  2. Step 2: Convert to fraction form
    60,950.95/91,364.09 = 20,957.94/x
  3. Step 3: Cross multiply
    60,950.95x = 91,364.09 × 20,957.94
  4. Step 4: Simplify right side
    60,950.95x = 1,914,803,011.58
  5. Step 5: Solve for x
    x = 1,914,803,011.58/60,950.95
  6. Step 6: Final answer
    x = 31,415.48

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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.