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Finding the Fourth Proportional to 65,898.92, 98,860.80 and 26,459.12

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Solution

The fourth proportional to 65,898.92, 98,860.80 and 26,459.12 is: 39,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,898.92 : 98,860.80 = 26,459.12 : x
  2. Step 2: Convert to fraction form
    65,898.92/98,860.80 = 26,459.12/x
  3. Step 3: Cross multiply
    65,898.92x = 98,860.80 × 26,459.12
  4. Step 4: Simplify right side
    65,898.92x = 2,615,769,770.50
  5. Step 5: Solve for x
    x = 2,615,769,770.50/65,898.92
  6. Step 6: Final answer
    x = 39,693.67

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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.