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Finding the Fourth Proportional to 65,901.80, 98,859.90 and 63,828.20

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Solution

The fourth proportional to 65,901.80, 98,859.90 and 63,828.20 is: 95,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,901.80 : 98,859.90 = 63,828.20 : x
  2. Step 2: Convert to fraction form
    65,901.80/98,859.90 = 63,828.20/x
  3. Step 3: Cross multiply
    65,901.80x = 98,859.90 × 63,828.20
  4. Step 4: Simplify right side
    65,901.80x = 6,310,049,469.18
  5. Step 5: Solve for x
    x = 6,310,049,469.18/65,901.80
  6. Step 6: Final answer
    x = 95,749.27

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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.