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Finding the Fourth Proportional to 79,219.40, 118,847.10 and 26,634.20

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Solution

The fourth proportional to 79,219.40, 118,847.10 and 26,634.20 is: 39,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.40 : 118,847.10 = 26,634.20 : x
  2. Step 2: Convert to fraction form
    79,219.40/118,847.10 = 26,634.20/x
  3. Step 3: Cross multiply
    79,219.40x = 118,847.10 × 26,634.20
  4. Step 4: Simplify right side
    79,219.40x = 3,165,397,430.82
  5. Step 5: Solve for x
    x = 3,165,397,430.82/79,219.40
  6. Step 6: Final answer
    x = 39,957.35

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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.