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Finding the Fourth Proportional to 50,873.96, 70,209.06 and 28,521.32

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Solution

The fourth proportional to 50,873.96, 70,209.06 and 28,521.32 is: 39,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,873.96 : 70,209.06 = 28,521.32 : x
  2. Step 2: Convert to fraction form
    50,873.96/70,209.06 = 28,521.32/x
  3. Step 3: Cross multiply
    50,873.96x = 70,209.06 × 28,521.32
  4. Step 4: Simplify right side
    50,873.96x = 2,002,455,067.16
  5. Step 5: Solve for x
    x = 2,002,455,067.16/50,873.96
  6. Step 6: Final answer
    x = 39,361.10

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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.