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Finding the Fourth Proportional to 57,709.92, 79,639.56 and 32,559.24

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Solution

The fourth proportional to 57,709.92, 79,639.56 and 32,559.24 is: 44,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.92 : 79,639.56 = 32,559.24 : x
  2. Step 2: Convert to fraction form
    57,709.92/79,639.56 = 32,559.24/x
  3. Step 3: Cross multiply
    57,709.92x = 79,639.56 × 32,559.24
  4. Step 4: Simplify right side
    57,709.92x = 2,593,003,547.53
  5. Step 5: Solve for x
    x = 2,593,003,547.53/57,709.92
  6. Step 6: Final answer
    x = 44,931.68

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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.