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Finding the Fourth Proportional to 70,209.70, 105,314.55 and 23,462.58

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Solution

The fourth proportional to 70,209.70, 105,314.55 and 23,462.58 is: 35,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.70 : 105,314.55 = 23,462.58 : x
  2. Step 2: Convert to fraction form
    70,209.70/105,314.55 = 23,462.58/x
  3. Step 3: Cross multiply
    70,209.70x = 105,314.55 × 23,462.58
  4. Step 4: Simplify right side
    70,209.70x = 2,470,950,967.06
  5. Step 5: Solve for x
    x = 2,470,950,967.06/70,209.70
  6. Step 6: Final answer
    x = 35,193.87

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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.