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Finding the Fourth Proportional to 57,408.96, 79,217.28 and 33,214.08

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Solution

The fourth proportional to 57,408.96, 79,217.28 and 33,214.08 is: 45,831.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.96 : 79,217.28 = 33,214.08 : x
  2. Step 2: Convert to fraction form
    57,408.96/79,217.28 = 33,214.08/x
  3. Step 3: Cross multiply
    57,408.96x = 79,217.28 × 33,214.08
  4. Step 4: Simplify right side
    57,408.96x = 2,631,129,075.30
  5. Step 5: Solve for x
    x = 2,631,129,075.30/57,408.96
  6. Step 6: Final answer
    x = 45,831.33

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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.