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Finding the Fourth Proportional to 57,472.86, 79,267.55 and 39,334.32

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Solution

The fourth proportional to 57,472.86, 79,267.55 and 39,334.32 is: 54,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,472.86 : 79,267.55 = 39,334.32 : x
  2. Step 2: Convert to fraction form
    57,472.86/79,267.55 = 39,334.32/x
  3. Step 3: Cross multiply
    57,472.86x = 79,267.55 × 39,334.32
  4. Step 4: Simplify right side
    57,472.86x = 3,117,935,177.32
  5. Step 5: Solve for x
    x = 3,117,935,177.32/57,472.86
  6. Step 6: Final answer
    x = 54,250.57

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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.