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Finding the Fourth Proportional to 70,808.43, 106,230.91 and 26,435.55

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Solution

The fourth proportional to 70,808.43, 106,230.91 and 26,435.55 is: 39,660.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.43 : 106,230.91 = 26,435.55 : x
  2. Step 2: Convert to fraction form
    70,808.43/106,230.91 = 26,435.55/x
  3. Step 3: Cross multiply
    70,808.43x = 106,230.91 × 26,435.55
  4. Step 4: Simplify right side
    70,808.43x = 2,808,272,532.85
  5. Step 5: Solve for x
    x = 2,808,272,532.85/70,808.43
  6. Step 6: Final answer
    x = 39,660.14

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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.