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Finding the Fourth Proportional to 65,579.32, 98,416.36 and 26,113.68

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Solution

The fourth proportional to 65,579.32, 98,416.36 and 26,113.68 is: 39,189.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.32 : 98,416.36 = 26,113.68 : x
  2. Step 2: Convert to fraction form
    65,579.32/98,416.36 = 26,113.68/x
  3. Step 3: Cross multiply
    65,579.32x = 98,416.36 × 26,113.68
  4. Step 4: Simplify right side
    65,579.32x = 2,570,013,331.80
  5. Step 5: Solve for x
    x = 2,570,013,331.80/65,579.32
  6. Step 6: Final answer
    x = 39,189.39

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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.