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Finding the Fourth Proportional to 63,506.40, 87,639.36 and 35,212.48

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Solution

The fourth proportional to 63,506.40, 87,639.36 and 35,212.48 is: 48,593.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,506.40 : 87,639.36 = 35,212.48 : x
  2. Step 2: Convert to fraction form
    63,506.40/87,639.36 = 35,212.48/x
  3. Step 3: Cross multiply
    63,506.40x = 87,639.36 × 35,212.48
  4. Step 4: Simplify right side
    63,506.40x = 3,085,999,211.21
  5. Step 5: Solve for x
    x = 3,085,999,211.21/63,506.40
  6. Step 6: Final answer
    x = 48,593.52

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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.