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Finding the Fourth Proportional to 50,866.99, 70,196.10 and 28,205.97

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Solution

The fourth proportional to 50,866.99, 70,196.10 and 28,205.97 is: 38,924.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,866.99 : 70,196.10 = 28,205.97 : x
  2. Step 2: Convert to fraction form
    50,866.99/70,196.10 = 28,205.97/x
  3. Step 3: Cross multiply
    50,866.99x = 70,196.10 × 28,205.97
  4. Step 4: Simplify right side
    50,866.99x = 1,979,949,090.72
  5. Step 5: Solve for x
    x = 1,979,949,090.72/50,866.99
  6. Step 6: Final answer
    x = 38,924.05

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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.