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Finding the Fourth Proportional to 25,836.67, 38,755.01 and 7,118.69

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Solution

The fourth proportional to 25,836.67, 38,755.01 and 7,118.69 is: 10,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,836.67 : 38,755.01 = 7,118.69 : x
  2. Step 2: Convert to fraction form
    25,836.67/38,755.01 = 7,118.69/x
  3. Step 3: Cross multiply
    25,836.67x = 38,755.01 × 7,118.69
  4. Step 4: Simplify right side
    25,836.67x = 275,884,686.12
  5. Step 5: Solve for x
    x = 275,884,686.12/25,836.67
  6. Step 6: Final answer
    x = 10,678.03

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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.