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Finding the Fourth Proportional to 50,603.70, 75,905.55 and 15,538.80

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Solution

The fourth proportional to 50,603.70, 75,905.55 and 15,538.80 is: 23,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,603.70 : 75,905.55 = 15,538.80 : x
  2. Step 2: Convert to fraction form
    50,603.70/75,905.55 = 15,538.80/x
  3. Step 3: Cross multiply
    50,603.70x = 75,905.55 × 15,538.80
  4. Step 4: Simplify right side
    50,603.70x = 1,179,481,160.34
  5. Step 5: Solve for x
    x = 1,179,481,160.34/50,603.70
  6. Step 6: Final answer
    x = 23,308.20

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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.