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Finding the Fourth Proportional to 65,848.56, 90,876.32 and 37,556.40

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Solution

The fourth proportional to 65,848.56, 90,876.32 and 37,556.40 is: 51,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,848.56 : 90,876.32 = 37,556.40 : x
  2. Step 2: Convert to fraction form
    65,848.56/90,876.32 = 37,556.40/x
  3. Step 3: Cross multiply
    65,848.56x = 90,876.32 × 37,556.40
  4. Step 4: Simplify right side
    65,848.56x = 3,412,987,424.45
  5. Step 5: Solve for x
    x = 3,412,987,424.45/65,848.56
  6. Step 6: Final answer
    x = 51,830.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.