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Finding the Fourth Proportional to 67,290.34, 100,938.30 and 25,166.20

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Solution

The fourth proportional to 67,290.34, 100,938.30 and 25,166.20 is: 37,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,290.34 : 100,938.30 = 25,166.20 : x
  2. Step 2: Convert to fraction form
    67,290.34/100,938.30 = 25,166.20/x
  3. Step 3: Cross multiply
    67,290.34x = 100,938.30 × 25,166.20
  4. Step 4: Simplify right side
    67,290.34x = 2,540,233,445.46
  5. Step 5: Solve for x
    x = 2,540,233,445.46/67,290.34
  6. Step 6: Final answer
    x = 37,750.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.