Home / 51,589.80-71,188.97-28,929.74

Finding the Fourth Proportional to 51,589.80, 71,188.97 and 28,929.74

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Solution

The fourth proportional to 51,589.80, 71,188.97 and 28,929.74 is: 39,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,589.80 : 71,188.97 = 28,929.74 : x
  2. Step 2: Convert to fraction form
    51,589.80/71,188.97 = 28,929.74/x
  3. Step 3: Cross multiply
    51,589.80x = 71,188.97 × 28,929.74
  4. Step 4: Simplify right side
    51,589.80x = 2,059,477,892.37
  5. Step 5: Solve for x
    x = 2,059,477,892.37/51,589.80
  6. Step 6: Final answer
    x = 39,920.25

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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.