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Finding the Fourth Proportional to 65,924.70, 98,850.60 and 21,528.60

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Solution

The fourth proportional to 65,924.70, 98,850.60 and 21,528.60 is: 32,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,924.70 : 98,850.60 = 21,528.60 : x
  2. Step 2: Convert to fraction form
    65,924.70/98,850.60 = 21,528.60/x
  3. Step 3: Cross multiply
    65,924.70x = 98,850.60 × 21,528.60
  4. Step 4: Simplify right side
    65,924.70x = 2,128,115,027.16
  5. Step 5: Solve for x
    x = 2,128,115,027.16/65,924.70
  6. Step 6: Final answer
    x = 32,281.00

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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.