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Finding the Fourth Proportional to 64,388.85, 96,572.93 and 17,630.79

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Solution

The fourth proportional to 64,388.85, 96,572.93 and 17,630.79 is: 26,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,388.85 : 96,572.93 = 17,630.79 : x
  2. Step 2: Convert to fraction form
    64,388.85/96,572.93 = 17,630.79/x
  3. Step 3: Cross multiply
    64,388.85x = 96,572.93 × 17,630.79
  4. Step 4: Simplify right side
    64,388.85x = 1,702,656,960.36
  5. Step 5: Solve for x
    x = 1,702,656,960.36/64,388.85
  6. Step 6: Final answer
    x = 26,443.35

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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.