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Finding the Fourth Proportional to 64,403.88, 96,606.20 and 29,319

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Solution

The fourth proportional to 64,403.88, 96,606.20 and 29,319 is: 43,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,403.88 : 96,606.20 = 29,319 : x
  2. Step 2: Convert to fraction form
    64,403.88/96,606.20 = 29,319/x
  3. Step 3: Cross multiply
    64,403.88x = 96,606.20 × 29,319
  4. Step 4: Simplify right side
    64,403.88x = 2,832,397,177.80
  5. Step 5: Solve for x
    x = 2,832,397,177.80/64,403.88
  6. Step 6: Final answer
    x = 43,978.67

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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.