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Finding the Fourth Proportional to 65,761.76, 98,642.72 and 16,513.76

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Solution

The fourth proportional to 65,761.76, 98,642.72 and 16,513.76 is: 24,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,761.76 : 98,642.72 = 16,513.76 : x
  2. Step 2: Convert to fraction form
    65,761.76/98,642.72 = 16,513.76/x
  3. Step 3: Cross multiply
    65,761.76x = 98,642.72 × 16,513.76
  4. Step 4: Simplify right side
    65,761.76x = 1,628,962,203.83
  5. Step 5: Solve for x
    x = 1,628,962,203.83/65,761.76
  6. Step 6: Final answer
    x = 24,770.66

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1.5x scale

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.