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Finding the Fourth Proportional to 68,804.46, 94,950.94 and 38,178.11

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Solution

The fourth proportional to 68,804.46, 94,950.94 and 38,178.11 is: 52,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,804.46 : 94,950.94 = 38,178.11 : x
  2. Step 2: Convert to fraction form
    68,804.46/94,950.94 = 38,178.11/x
  3. Step 3: Cross multiply
    68,804.46x = 94,950.94 × 38,178.11
  4. Step 4: Simplify right side
    68,804.46x = 3,625,047,431.92
  5. Step 5: Solve for x
    x = 3,625,047,431.92/68,804.46
  6. Step 6: Final answer
    x = 52,686.23

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1.5x scale

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.