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Finding the Fourth Proportional to 85,043.96, 127,584.30 and 25,884.26

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Solution

The fourth proportional to 85,043.96, 127,584.30 and 25,884.26 is: 38,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,043.96 : 127,584.30 = 25,884.26 : x
  2. Step 2: Convert to fraction form
    85,043.96/127,584.30 = 25,884.26/x
  3. Step 3: Cross multiply
    85,043.96x = 127,584.30 × 25,884.26
  4. Step 4: Simplify right side
    85,043.96x = 3,302,425,193.12
  5. Step 5: Solve for x
    x = 3,302,425,193.12/85,043.96
  6. Step 6: Final answer
    x = 38,831.98

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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.