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Finding the Fourth Proportional to 50,908.86, 70,295.50 and 31,810.88

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Solution

The fourth proportional to 50,908.86, 70,295.50 and 31,810.88 is: 43,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,908.86 : 70,295.50 = 31,810.88 : x
  2. Step 2: Convert to fraction form
    50,908.86/70,295.50 = 31,810.88/x
  3. Step 3: Cross multiply
    50,908.86x = 70,295.50 × 31,810.88
  4. Step 4: Simplify right side
    50,908.86x = 2,236,161,715.04
  5. Step 5: Solve for x
    x = 2,236,161,715.04/50,908.86
  6. Step 6: Final answer
    x = 43,924.80

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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.