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Finding the Fourth Proportional to 65,873.34, 98,739.15 and 28,451.01

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Solution

The fourth proportional to 65,873.34, 98,739.15 and 28,451.01 is: 42,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873.34 : 98,739.15 = 28,451.01 : x
  2. Step 2: Convert to fraction form
    65,873.34/98,739.15 = 28,451.01/x
  3. Step 3: Cross multiply
    65,873.34x = 98,739.15 × 28,451.01
  4. Step 4: Simplify right side
    65,873.34x = 2,809,228,544.04
  5. Step 5: Solve for x
    x = 2,809,228,544.04/65,873.34
  6. Step 6: Final answer
    x = 42,645.91

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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.