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Finding the Fourth Proportional to 57,468.86, 79,262.03 and 39,330.32

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Solution

The fourth proportional to 57,468.86, 79,262.03 and 39,330.32 is: 54,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,468.86 : 79,262.03 = 39,330.32 : x
  2. Step 2: Convert to fraction form
    57,468.86/79,262.03 = 39,330.32/x
  3. Step 3: Cross multiply
    57,468.86x = 79,262.03 × 39,330.32
  4. Step 4: Simplify right side
    57,468.86x = 3,117,401,003.75
  5. Step 5: Solve for x
    x = 3,117,401,003.75/57,468.86
  6. Step 6: Final answer
    x = 54,245.05

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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.