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Finding the Fourth Proportional to 50,892.51, 70,231.68 and 28,536.51

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Solution

The fourth proportional to 50,892.51, 70,231.68 and 28,536.51 is: 39,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,892.51 : 70,231.68 = 28,536.51 : x
  2. Step 2: Convert to fraction form
    50,892.51/70,231.68 = 28,536.51/x
  3. Step 3: Cross multiply
    50,892.51x = 70,231.68 × 28,536.51
  4. Step 4: Simplify right side
    50,892.51x = 2,004,167,038.64
  5. Step 5: Solve for x
    x = 2,004,167,038.64/50,892.51
  6. Step 6: Final answer
    x = 39,380.39

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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.