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Finding the Fourth Proportional to 65,645.96, 98,483.58 and 18,895.19

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Solution

The fourth proportional to 65,645.96, 98,483.58 and 18,895.19 is: 28,346.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.96 : 98,483.58 = 18,895.19 : x
  2. Step 2: Convert to fraction form
    65,645.96/98,483.58 = 18,895.19/x
  3. Step 3: Cross multiply
    65,645.96x = 98,483.58 × 18,895.19
  4. Step 4: Simplify right side
    65,645.96x = 1,860,865,463.56
  5. Step 5: Solve for x
    x = 1,860,865,463.56/65,645.96
  6. Step 6: Final answer
    x = 28,346.99

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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.