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Finding the Fourth Proportional to 65,895.75, 98,649.77 and 40,855.41

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Solution

The fourth proportional to 65,895.75, 98,649.77 and 40,855.41 is: 61,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,895.75 : 98,649.77 = 40,855.41 : x
  2. Step 2: Convert to fraction form
    65,895.75/98,649.77 = 40,855.41/x
  3. Step 3: Cross multiply
    65,895.75x = 98,649.77 × 40,855.41
  4. Step 4: Simplify right side
    65,895.75x = 4,030,376,595.48
  5. Step 5: Solve for x
    x = 4,030,376,595.48/65,895.75
  6. Step 6: Final answer
    x = 61,162.92

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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.