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Finding the Fourth Proportional to 65,883.58, 98,828.08 and 19,136.46

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Solution

The fourth proportional to 65,883.58, 98,828.08 and 19,136.46 is: 28,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,883.58 : 98,828.08 = 19,136.46 : x
  2. Step 2: Convert to fraction form
    65,883.58/98,828.08 = 19,136.46/x
  3. Step 3: Cross multiply
    65,883.58x = 98,828.08 × 19,136.46
  4. Step 4: Simplify right side
    65,883.58x = 1,891,219,599.80
  5. Step 5: Solve for x
    x = 1,891,219,599.80/65,883.58
  6. Step 6: Final answer
    x = 28,705.48

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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.