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Finding the Fourth Proportional to 13,937.67, 20,907.45 and 4,703.67

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Solution

The fourth proportional to 13,937.67, 20,907.45 and 4,703.67 is: 7,055.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.67 : 20,907.45 = 4,703.67 : x
  2. Step 2: Convert to fraction form
    13,937.67/20,907.45 = 4,703.67/x
  3. Step 3: Cross multiply
    13,937.67x = 20,907.45 × 4,703.67
  4. Step 4: Simplify right side
    13,937.67x = 98,341,745.34
  5. Step 5: Solve for x
    x = 98,341,745.34/13,937.67
  6. Step 6: Final answer
    x = 7,055.82

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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.