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Finding the Fourth Proportional to 57,448.81, 79,277.84 and 31,953.86

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Solution

The fourth proportional to 57,448.81, 79,277.84 and 31,953.86 is: 44,095.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,448.81 : 79,277.84 = 31,953.86 : x
  2. Step 2: Convert to fraction form
    57,448.81/79,277.84 = 31,953.86/x
  3. Step 3: Cross multiply
    57,448.81x = 79,277.84 × 31,953.86
  4. Step 4: Simplify right side
    57,448.81x = 2,533,232,861.42
  5. Step 5: Solve for x
    x = 2,533,232,861.42/57,448.81
  6. Step 6: Final answer
    x = 44,095.48

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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.