Home / 51,015.74-70,398.87-28,659.74

Finding the Fourth Proportional to 51,015.74, 70,398.87 and 28,659.74

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Solution

The fourth proportional to 51,015.74, 70,398.87 and 28,659.74 is: 39,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.74 : 70,398.87 = 28,659.74 : x
  2. Step 2: Convert to fraction form
    51,015.74/70,398.87 = 28,659.74/x
  3. Step 3: Cross multiply
    51,015.74x = 70,398.87 × 28,659.74
  4. Step 4: Simplify right side
    51,015.74x = 2,017,613,310.49
  5. Step 5: Solve for x
    x = 2,017,613,310.49/51,015.74
  6. Step 6: Final answer
    x = 39,548.84

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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.