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Finding the Fourth Proportional to 50,998.40, 76,508.40 and 15,456.80

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Solution

The fourth proportional to 50,998.40, 76,508.40 and 15,456.80 is: 23,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,998.40 : 76,508.40 = 15,456.80 : x
  2. Step 2: Convert to fraction form
    50,998.40/76,508.40 = 15,456.80/x
  3. Step 3: Cross multiply
    50,998.40x = 76,508.40 × 15,456.80
  4. Step 4: Simplify right side
    50,998.40x = 1,182,575,037.12
  5. Step 5: Solve for x
    x = 1,182,575,037.12/50,998.40
  6. Step 6: Final answer
    x = 23,188.47

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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.