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Finding the Fourth Proportional to 50,483.20, 75,724.80 and 13,043.20

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Solution

The fourth proportional to 50,483.20, 75,724.80 and 13,043.20 is: 19,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,483.20 : 75,724.80 = 13,043.20 : x
  2. Step 2: Convert to fraction form
    50,483.20/75,724.80 = 13,043.20/x
  3. Step 3: Cross multiply
    50,483.20x = 75,724.80 × 13,043.20
  4. Step 4: Simplify right side
    50,483.20x = 987,693,711.36
  5. Step 5: Solve for x
    x = 987,693,711.36/50,483.20
  6. Step 6: Final answer
    x = 19,564.80

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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.