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Finding the Fourth Proportional to 63,065.98, 87,031.72 and 34,772.68

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Solution

The fourth proportional to 63,065.98, 87,031.72 and 34,772.68 is: 47,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,065.98 : 87,031.72 = 34,772.68 : x
  2. Step 2: Convert to fraction form
    63,065.98/87,031.72 = 34,772.68/x
  3. Step 3: Cross multiply
    63,065.98x = 87,031.72 × 34,772.68
  4. Step 4: Simplify right side
    63,065.98x = 3,026,326,149.41
  5. Step 5: Solve for x
    x = 3,026,326,149.41/63,065.98
  6. Step 6: Final answer
    x = 47,986.67

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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.