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Finding the Fourth Proportional to 50,903.67, 70,245.75 and 28,242.57

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Solution

The fourth proportional to 50,903.67, 70,245.75 and 28,242.57 is: 38,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.67 : 70,245.75 = 28,242.57 : x
  2. Step 2: Convert to fraction form
    50,903.67/70,245.75 = 28,242.57/x
  3. Step 3: Cross multiply
    50,903.67x = 70,245.75 × 28,242.57
  4. Step 4: Simplify right side
    50,903.67x = 1,983,920,511.58
  5. Step 5: Solve for x
    x = 1,983,920,511.58/50,903.67
  6. Step 6: Final answer
    x = 38,974.02

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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.