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Finding the Fourth Proportional to 11,902.95, 17,860.50 and 4,888.35

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Solution

The fourth proportional to 11,902.95, 17,860.50 and 4,888.35 is: 7,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.95 : 17,860.50 = 4,888.35 : x
  2. Step 2: Convert to fraction form
    11,902.95/17,860.50 = 4,888.35/x
  3. Step 3: Cross multiply
    11,902.95x = 17,860.50 × 4,888.35
  4. Step 4: Simplify right side
    11,902.95x = 87,308,375.18
  5. Step 5: Solve for x
    x = 87,308,375.18/11,902.95
  6. Step 6: Final answer
    x = 7,335.02

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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.