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Finding the Fourth Proportional to 50,870.64, 70,201.26 and 28,514.64

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Solution

The fourth proportional to 50,870.64, 70,201.26 and 28,514.64 is: 39,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,870.64 : 70,201.26 = 28,514.64 : x
  2. Step 2: Convert to fraction form
    50,870.64/70,201.26 = 28,514.64/x
  3. Step 3: Cross multiply
    50,870.64x = 70,201.26 × 28,514.64
  4. Step 4: Simplify right side
    50,870.64x = 2,001,763,656.45
  5. Step 5: Solve for x
    x = 2,001,763,656.45/50,870.64
  6. Step 6: Final answer
    x = 39,350.08

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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.