Home / 51,238.05-70,708.89-28,578.52

Finding the Fourth Proportional to 51,238.05, 70,708.89 and 28,578.52

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Solution

The fourth proportional to 51,238.05, 70,708.89 and 28,578.52 is: 39,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.05 : 70,708.89 = 28,578.52 : x
  2. Step 2: Convert to fraction form
    51,238.05/70,708.89 = 28,578.52/x
  3. Step 3: Cross multiply
    51,238.05x = 70,708.89 × 28,578.52
  4. Step 4: Simplify right side
    51,238.05x = 2,020,755,427.04
  5. Step 5: Solve for x
    x = 2,020,755,427.04/51,238.05
  6. Step 6: Final answer
    x = 39,438.57

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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.