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Finding the Fourth Proportional to 65,902.90, 98,607.39 and 39,150.94

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Solution

The fourth proportional to 65,902.90, 98,607.39 and 39,150.94 is: 58,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,902.90 : 98,607.39 = 39,150.94 : x
  2. Step 2: Convert to fraction form
    65,902.90/98,607.39 = 39,150.94/x
  3. Step 3: Cross multiply
    65,902.90x = 98,607.39 × 39,150.94
  4. Step 4: Simplify right side
    65,902.90x = 3,860,572,009.45
  5. Step 5: Solve for x
    x = 3,860,572,009.45/65,902.90
  6. Step 6: Final answer
    x = 58,579.70

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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.