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Finding the Fourth Proportional to 65,885.82, 98,745.96 and 28,402.02

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Solution

The fourth proportional to 65,885.82, 98,745.96 and 28,402.02 is: 42,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,885.82 : 98,745.96 = 28,402.02 : x
  2. Step 2: Convert to fraction form
    65,885.82/98,745.96 = 28,402.02/x
  3. Step 3: Cross multiply
    65,885.82x = 98,745.96 × 28,402.02
  4. Step 4: Simplify right side
    65,885.82x = 2,804,584,730.84
  5. Step 5: Solve for x
    x = 2,804,584,730.84/65,885.82
  6. Step 6: Final answer
    x = 42,567.35

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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.