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Finding the Fourth Proportional to 65,884.58, 98,829.58 and 19,137.46

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Solution

The fourth proportional to 65,884.58, 98,829.58 and 19,137.46 is: 28,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,884.58 : 98,829.58 = 19,137.46 : x
  2. Step 2: Convert to fraction form
    65,884.58/98,829.58 = 19,137.46/x
  3. Step 3: Cross multiply
    65,884.58x = 98,829.58 × 19,137.46
  4. Step 4: Simplify right side
    65,884.58x = 1,891,347,134.07
  5. Step 5: Solve for x
    x = 1,891,347,134.07/65,884.58
  6. Step 6: Final answer
    x = 28,706.98

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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.