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Finding the Fourth Proportional to 64,647.30, 96,931.26 and 25,158.45

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Solution

The fourth proportional to 64,647.30, 96,931.26 and 25,158.45 is: 37,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,647.30 : 96,931.26 = 25,158.45 : x
  2. Step 2: Convert to fraction form
    64,647.30/96,931.26 = 25,158.45/x
  3. Step 3: Cross multiply
    64,647.30x = 96,931.26 × 25,158.45
  4. Step 4: Simplify right side
    64,647.30x = 2,438,640,258.15
  5. Step 5: Solve for x
    x = 2,438,640,258.15/64,647.30
  6. Step 6: Final answer
    x = 37,722.23

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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.