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Finding the Fourth Proportional to 65,744.88, 98,591.36 and 28,307.76

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Solution

The fourth proportional to 65,744.88, 98,591.36 and 28,307.76 is: 42,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,744.88 : 98,591.36 = 28,307.76 : x
  2. Step 2: Convert to fraction form
    65,744.88/98,591.36 = 28,307.76/x
  3. Step 3: Cross multiply
    65,744.88x = 98,591.36 × 28,307.76
  4. Step 4: Simplify right side
    65,744.88x = 2,790,900,556.95
  5. Step 5: Solve for x
    x = 2,790,900,556.95/65,744.88
  6. Step 6: Final answer
    x = 42,450.46

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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.