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Finding the Fourth Proportional to 49,980.53, 74,933.76 and 30,254.42

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Solution

The fourth proportional to 49,980.53, 74,933.76 and 30,254.42 is: 45,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,980.53 : 74,933.76 = 30,254.42 : x
  2. Step 2: Convert to fraction form
    49,980.53/74,933.76 = 30,254.42/x
  3. Step 3: Cross multiply
    49,980.53x = 74,933.76 × 30,254.42
  4. Step 4: Simplify right side
    49,980.53x = 2,267,077,447.22
  5. Step 5: Solve for x
    x = 2,267,077,447.22/49,980.53
  6. Step 6: Final answer
    x = 45,359.21

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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.