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Finding the Fourth Proportional to 25,888.89, 38,848.08 and 10,091.86

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Solution

The fourth proportional to 25,888.89, 38,848.08 and 10,091.86 is: 15,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,888.89 : 38,848.08 = 10,091.86 : x
  2. Step 2: Convert to fraction form
    25,888.89/38,848.08 = 10,091.86/x
  3. Step 3: Cross multiply
    25,888.89x = 38,848.08 × 10,091.86
  4. Step 4: Simplify right side
    25,888.89x = 392,049,384.63
  5. Step 5: Solve for x
    x = 392,049,384.63/25,888.89
  6. Step 6: Final answer
    x = 15,143.54

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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.