Home / 51,180.14-70,627.88-28,520.09

Finding the Fourth Proportional to 51,180.14, 70,627.88 and 28,520.09

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Solution

The fourth proportional to 51,180.14, 70,627.88 and 28,520.09 is: 39,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.14 : 70,627.88 = 28,520.09 : x
  2. Step 2: Convert to fraction form
    51,180.14/70,627.88 = 28,520.09/x
  3. Step 3: Cross multiply
    51,180.14x = 70,627.88 × 28,520.09
  4. Step 4: Simplify right side
    51,180.14x = 2,014,313,351.51
  5. Step 5: Solve for x
    x = 2,014,313,351.51/51,180.14
  6. Step 6: Final answer
    x = 39,357.32

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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.