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Finding the Fourth Proportional to 50,399.60, 75,607.54 and 15,331

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Solution

The fourth proportional to 50,399.60, 75,607.54 and 15,331 is: 22,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,399.60 : 75,607.54 = 15,331 : x
  2. Step 2: Convert to fraction form
    50,399.60/75,607.54 = 15,331/x
  3. Step 3: Cross multiply
    50,399.60x = 75,607.54 × 15,331
  4. Step 4: Simplify right side
    50,399.60x = 1,159,139,195.74
  5. Step 5: Solve for x
    x = 1,159,139,195.74/50,399.60
  6. Step 6: Final answer
    x = 22,998.98

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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.