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Finding the Fourth Proportional to 28,695.53, 39,604.53 and 23,907.88

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Solution

The fourth proportional to 28,695.53, 39,604.53 and 23,907.88 is: 32,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.53 : 39,604.53 = 23,907.88 : x
  2. Step 2: Convert to fraction form
    28,695.53/39,604.53 = 23,907.88/x
  3. Step 3: Cross multiply
    28,695.53x = 39,604.53 × 23,907.88
  4. Step 4: Simplify right side
    28,695.53x = 946,860,191.92
  5. Step 5: Solve for x
    x = 946,860,191.92/28,695.53
  6. Step 6: Final answer
    x = 32,996.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.