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Finding the Fourth Proportional to 63,272.64, 87,312.81 and 34,976.50

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Solution

The fourth proportional to 63,272.64, 87,312.81 and 34,976.50 is: 48,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,272.64 : 87,312.81 = 34,976.50 : x
  2. Step 2: Convert to fraction form
    63,272.64/87,312.81 = 34,976.50/x
  3. Step 3: Cross multiply
    63,272.64x = 87,312.81 × 34,976.50
  4. Step 4: Simplify right side
    63,272.64x = 3,053,896,498.97
  5. Step 5: Solve for x
    x = 3,053,896,498.97/63,272.64
  6. Step 6: Final answer
    x = 48,265.67

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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.