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Finding the Fourth Proportional to 50,603.50, 75,905.25 and 13,667.50

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Solution

The fourth proportional to 50,603.50, 75,905.25 and 13,667.50 is: 20,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,603.50 : 75,905.25 = 13,667.50 : x
  2. Step 2: Convert to fraction form
    50,603.50/75,905.25 = 13,667.50/x
  3. Step 3: Cross multiply
    50,603.50x = 75,905.25 × 13,667.50
  4. Step 4: Simplify right side
    50,603.50x = 1,037,435,004.38
  5. Step 5: Solve for x
    x = 1,037,435,004.38/50,603.50
  6. Step 6: Final answer
    x = 20,501.25

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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.