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Finding the Fourth Proportional to 45,165.60, 67,751.77 and 13,573.14

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Solution

The fourth proportional to 45,165.60, 67,751.77 and 13,573.14 is: 20,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,165.60 : 67,751.77 = 13,573.14 : x
  2. Step 2: Convert to fraction form
    45,165.60/67,751.77 = 13,573.14/x
  3. Step 3: Cross multiply
    45,165.60x = 67,751.77 × 13,573.14
  4. Step 4: Simplify right side
    45,165.60x = 919,603,937.52
  5. Step 5: Solve for x
    x = 919,603,937.52/45,165.60
  6. Step 6: Final answer
    x = 20,360.71

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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.