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Finding the Fourth Proportional to 65,430.71, 98,194.97 and 25,455.99

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Solution

The fourth proportional to 65,430.71, 98,194.97 and 25,455.99 is: 38,203.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,430.71 : 98,194.97 = 25,455.99 : x
  2. Step 2: Convert to fraction form
    65,430.71/98,194.97 = 25,455.99/x
  3. Step 3: Cross multiply
    65,430.71x = 98,194.97 × 25,455.99
  4. Step 4: Simplify right side
    65,430.71x = 2,499,650,174.37
  5. Step 5: Solve for x
    x = 2,499,650,174.37/65,430.71
  6. Step 6: Final answer
    x = 38,203.01

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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.