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Finding the Fourth Proportional to 50,959.64, 70,321.95 and 28,300.07

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Solution

The fourth proportional to 50,959.64, 70,321.95 and 28,300.07 is: 39,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,959.64 : 70,321.95 = 28,300.07 : x
  2. Step 2: Convert to fraction form
    50,959.64/70,321.95 = 28,300.07/x
  3. Step 3: Cross multiply
    50,959.64x = 70,321.95 × 28,300.07
  4. Step 4: Simplify right side
    50,959.64x = 1,990,115,755.93
  5. Step 5: Solve for x
    x = 1,990,115,755.93/50,959.64
  6. Step 6: Final answer
    x = 39,052.79

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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.