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Finding the Fourth Proportional to 30,671.66, 42,446.58 and 29,934.17

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Solution

The fourth proportional to 30,671.66, 42,446.58 and 29,934.17 is: 41,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.66 : 42,446.58 = 29,934.17 : x
  2. Step 2: Convert to fraction form
    30,671.66/42,446.58 = 29,934.17/x
  3. Step 3: Cross multiply
    30,671.66x = 42,446.58 × 29,934.17
  4. Step 4: Simplify right side
    30,671.66x = 1,270,603,141.64
  5. Step 5: Solve for x
    x = 1,270,603,141.64/30,671.66
  6. Step 6: Final answer
    x = 41,425.97

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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.