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Finding the Fourth Proportional to 63,505.81, 87,639.03 and 34,828.10

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Solution

The fourth proportional to 63,505.81, 87,639.03 and 34,828.10 is: 48,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,505.81 : 87,639.03 = 34,828.10 : x
  2. Step 2: Convert to fraction form
    63,505.81/87,639.03 = 34,828.10/x
  3. Step 3: Cross multiply
    63,505.81x = 87,639.03 × 34,828.10
  4. Step 4: Simplify right side
    63,505.81x = 3,052,300,462.55
  5. Step 5: Solve for x
    x = 3,052,300,462.55/63,505.81
  6. Step 6: Final answer
    x = 48,063.33

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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.