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Finding the Fourth Proportional to 51,058.80, 70,453.80 and 28,396.62

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Solution

The fourth proportional to 51,058.80, 70,453.80 and 28,396.62 is: 39,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,058.80 : 70,453.80 = 28,396.62 : x
  2. Step 2: Convert to fraction form
    51,058.80/70,453.80 = 28,396.62/x
  3. Step 3: Cross multiply
    51,058.80x = 70,453.80 × 28,396.62
  4. Step 4: Simplify right side
    51,058.80x = 2,000,649,786.16
  5. Step 5: Solve for x
    x = 2,000,649,786.16/51,058.80
  6. Step 6: Final answer
    x = 39,183.25

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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.