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Finding the Fourth Proportional to 74,646.30, 111,969.45 and 33,093.30

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Solution

The fourth proportional to 74,646.30, 111,969.45 and 33,093.30 is: 49,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,646.30 : 111,969.45 = 33,093.30 : x
  2. Step 2: Convert to fraction form
    74,646.30/111,969.45 = 33,093.30/x
  3. Step 3: Cross multiply
    74,646.30x = 111,969.45 × 33,093.30
  4. Step 4: Simplify right side
    74,646.30x = 3,705,438,599.69
  5. Step 5: Solve for x
    x = 3,705,438,599.69/74,646.30
  6. Step 6: Final answer
    x = 49,639.95

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1.5x scale

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.