Home / 51,383.77-70,908.11-28,722.80

Finding the Fourth Proportional to 51,383.77, 70,908.11 and 28,722.80

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Solution

The fourth proportional to 51,383.77, 70,908.11 and 28,722.80 is: 39,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,383.77 : 70,908.11 = 28,722.80 : x
  2. Step 2: Convert to fraction form
    51,383.77/70,908.11 = 28,722.80/x
  3. Step 3: Cross multiply
    51,383.77x = 70,908.11 × 28,722.80
  4. Step 4: Simplify right side
    51,383.77x = 2,036,679,603.27
  5. Step 5: Solve for x
    x = 2,036,679,603.27/51,383.77
  6. Step 6: Final answer
    x = 39,636.63

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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.