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Finding the Fourth Proportional to 66,992.84, 92,431.18 and 43,133.34

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Solution

The fourth proportional to 66,992.84, 92,431.18 and 43,133.34 is: 59,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992.84 : 92,431.18 = 43,133.34 : x
  2. Step 2: Convert to fraction form
    66,992.84/92,431.18 = 43,133.34/x
  3. Step 3: Cross multiply
    66,992.84x = 92,431.18 × 43,133.34
  4. Step 4: Simplify right side
    66,992.84x = 3,986,865,513.54
  5. Step 5: Solve for x
    x = 3,986,865,513.54/66,992.84
  6. Step 6: Final answer
    x = 59,511.82

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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.