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Finding the Fourth Proportional to 23,235.80, 34,836.54 and 7,431.69

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Solution

The fourth proportional to 23,235.80, 34,836.54 and 7,431.69 is: 11,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,235.80 : 34,836.54 = 7,431.69 : x
  2. Step 2: Convert to fraction form
    23,235.80/34,836.54 = 7,431.69/x
  3. Step 3: Cross multiply
    23,235.80x = 34,836.54 × 7,431.69
  4. Step 4: Simplify right side
    23,235.80x = 258,894,365.95
  5. Step 5: Solve for x
    x = 258,894,365.95/23,235.80
  6. Step 6: Final answer
    x = 11,142.05

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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.