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Finding the Fourth Proportional to 65,920.40, 98,861.40 and 23,795.60

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Solution

The fourth proportional to 65,920.40, 98,861.40 and 23,795.60 is: 35,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.40 : 98,861.40 = 23,795.60 : x
  2. Step 2: Convert to fraction form
    65,920.40/98,861.40 = 23,795.60/x
  3. Step 3: Cross multiply
    65,920.40x = 98,861.40 × 23,795.60
  4. Step 4: Simplify right side
    65,920.40x = 2,352,466,329.84
  5. Step 5: Solve for x
    x = 2,352,466,329.84/65,920.40
  6. Step 6: Final answer
    x = 35,686.47

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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.