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Finding the Fourth Proportional to 65,742.84, 98,627.22 and 21,366.72

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Solution

The fourth proportional to 65,742.84, 98,627.22 and 21,366.72 is: 32,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,742.84 : 98,627.22 = 21,366.72 : x
  2. Step 2: Convert to fraction form
    65,742.84/98,627.22 = 21,366.72/x
  3. Step 3: Cross multiply
    65,742.84x = 98,627.22 × 21,366.72
  4. Step 4: Simplify right side
    65,742.84x = 2,107,340,194.12
  5. Step 5: Solve for x
    x = 2,107,340,194.12/65,742.84
  6. Step 6: Final answer
    x = 32,054.29

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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.