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Finding the Fourth Proportional to 45,042, 62,159.88 and 25,170

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Solution

The fourth proportional to 45,042, 62,159.88 and 25,170 is: 34,735.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,042 : 62,159.88 = 25,170 : x
  2. Step 2: Convert to fraction form
    45,042/62,159.88 = 25,170/x
  3. Step 3: Cross multiply
    45,042x = 62,159.88 × 25,170
  4. Step 4: Simplify right side
    45,042x = 1,564,564,179.60
  5. Step 5: Solve for x
    x = 1,564,564,179.60/45,042
  6. Step 6: Final answer
    x = 34,735.67

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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.