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Finding the Fourth Proportional to 65,999.80, 98,999.70 and 19,252.68

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Solution

The fourth proportional to 65,999.80, 98,999.70 and 19,252.68 is: 28,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,999.80 : 98,999.70 = 19,252.68 : x
  2. Step 2: Convert to fraction form
    65,999.80/98,999.70 = 19,252.68/x
  3. Step 3: Cross multiply
    65,999.80x = 98,999.70 × 19,252.68
  4. Step 4: Simplify right side
    65,999.80x = 1,906,009,544.20
  5. Step 5: Solve for x
    x = 1,906,009,544.20/65,999.80
  6. Step 6: Final answer
    x = 28,879.02

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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.