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Finding the Fourth Proportional to 50,731.80, 76,097.70 and 13,795.80

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Solution

The fourth proportional to 50,731.80, 76,097.70 and 13,795.80 is: 20,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,731.80 : 76,097.70 = 13,795.80 : x
  2. Step 2: Convert to fraction form
    50,731.80/76,097.70 = 13,795.80/x
  3. Step 3: Cross multiply
    50,731.80x = 76,097.70 × 13,795.80
  4. Step 4: Simplify right side
    50,731.80x = 1,049,828,649.66
  5. Step 5: Solve for x
    x = 1,049,828,649.66/50,731.80
  6. Step 6: Final answer
    x = 20,693.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.