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Finding the Fourth Proportional to 98,004.71, 146,989.53 and 25,958.12

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Solution

The fourth proportional to 98,004.71, 146,989.53 and 25,958.12 is: 38,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,004.71 : 146,989.53 = 25,958.12 : x
  2. Step 2: Convert to fraction form
    98,004.71/146,989.53 = 25,958.12/x
  3. Step 3: Cross multiply
    98,004.71x = 146,989.53 × 25,958.12
  4. Step 4: Simplify right side
    98,004.71x = 3,815,571,123.54
  5. Step 5: Solve for x
    x = 3,815,571,123.54/98,004.71
  6. Step 6: Final answer
    x = 38,932.53

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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.