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Finding the Fourth Proportional to 70,418.90, 105,606.30 and 23,660.84

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Solution

The fourth proportional to 70,418.90, 105,606.30 and 23,660.84 is: 35,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,418.90 : 105,606.30 = 23,660.84 : x
  2. Step 2: Convert to fraction form
    70,418.90/105,606.30 = 23,660.84/x
  3. Step 3: Cross multiply
    70,418.90x = 105,606.30 × 23,660.84
  4. Step 4: Simplify right side
    70,418.90x = 2,498,733,767.29
  5. Step 5: Solve for x
    x = 2,498,733,767.29/70,418.90
  6. Step 6: Final answer
    x = 35,483.85

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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.