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Finding the Fourth Proportional to 65,844.40, 98,680.20 and 26,369.20

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Solution

The fourth proportional to 65,844.40, 98,680.20 and 26,369.20 is: 39,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,844.40 : 98,680.20 = 26,369.20 : x
  2. Step 2: Convert to fraction form
    65,844.40/98,680.20 = 26,369.20/x
  3. Step 3: Cross multiply
    65,844.40x = 98,680.20 × 26,369.20
  4. Step 4: Simplify right side
    65,844.40x = 2,602,117,929.84
  5. Step 5: Solve for x
    x = 2,602,117,929.84/65,844.40
  6. Step 6: Final answer
    x = 39,519.20

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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.