Home / 50,920.85-70,270.68-28,260.11

Finding the Fourth Proportional to 50,920.85, 70,270.68 and 28,260.11

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Solution

The fourth proportional to 50,920.85, 70,270.68 and 28,260.11 is: 38,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,920.85 : 70,270.68 = 28,260.11 : x
  2. Step 2: Convert to fraction form
    50,920.85/70,270.68 = 28,260.11/x
  3. Step 3: Cross multiply
    50,920.85x = 70,270.68 × 28,260.11
  4. Step 4: Simplify right side
    50,920.85x = 1,985,857,216.28
  5. Step 5: Solve for x
    x = 1,985,857,216.28/50,920.85
  6. Step 6: Final answer
    x = 38,998.90

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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.