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Finding the Fourth Proportional to 25,937.70, 38,900.40 and 11,888.96

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Solution

The fourth proportional to 25,937.70, 38,900.40 and 11,888.96 is: 17,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,937.70 : 38,900.40 = 11,888.96 : x
  2. Step 2: Convert to fraction form
    25,937.70/38,900.40 = 11,888.96/x
  3. Step 3: Cross multiply
    25,937.70x = 38,900.40 × 11,888.96
  4. Step 4: Simplify right side
    25,937.70x = 462,485,105.08
  5. Step 5: Solve for x
    x = 462,485,105.08/25,937.70
  6. Step 6: Final answer
    x = 17,830.61

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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.