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Finding the Fourth Proportional to 58,406, 80,600.40 and 33,255.52

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Solution

The fourth proportional to 58,406, 80,600.40 and 33,255.52 is: 45,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,406 : 80,600.40 = 33,255.52 : x
  2. Step 2: Convert to fraction form
    58,406/80,600.40 = 33,255.52/x
  3. Step 3: Cross multiply
    58,406x = 80,600.40 × 33,255.52
  4. Step 4: Simplify right side
    58,406x = 2,680,408,214.21
  5. Step 5: Solve for x
    x = 2,680,408,214.21/58,406
  6. Step 6: Final answer
    x = 45,892.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.