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Finding the Fourth Proportional to 70,809.43, 106,232.41 and 26,436.55

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Solution

The fourth proportional to 70,809.43, 106,232.41 and 26,436.55 is: 39,661.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.43 : 106,232.41 = 26,436.55 : x
  2. Step 2: Convert to fraction form
    70,809.43/106,232.41 = 26,436.55/x
  3. Step 3: Cross multiply
    70,809.43x = 106,232.41 × 26,436.55
  4. Step 4: Simplify right side
    70,809.43x = 2,808,418,418.59
  5. Step 5: Solve for x
    x = 2,808,418,418.59/70,809.43
  6. Step 6: Final answer
    x = 39,661.64

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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.