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Finding the Fourth Proportional to 63,429.41, 87,492.76 and 40,797.81

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Solution

The fourth proportional to 63,429.41, 87,492.76 and 40,797.81 is: 56,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,429.41 : 87,492.76 = 40,797.81 : x
  2. Step 2: Convert to fraction form
    63,429.41/87,492.76 = 40,797.81/x
  3. Step 3: Cross multiply
    63,429.41x = 87,492.76 × 40,797.81
  4. Step 4: Simplify right side
    63,429.41x = 3,569,512,896.86
  5. Step 5: Solve for x
    x = 3,569,512,896.86/63,429.41
  6. Step 6: Final answer
    x = 56,275.36

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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.