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Finding the Fourth Proportional to 12,373.60, 18,590.82 and 7,933.18

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Solution

The fourth proportional to 12,373.60, 18,590.82 and 7,933.18 is: 11,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.60 : 18,590.82 = 7,933.18 : x
  2. Step 2: Convert to fraction form
    12,373.60/18,590.82 = 7,933.18/x
  3. Step 3: Cross multiply
    12,373.60x = 18,590.82 × 7,933.18
  4. Step 4: Simplify right side
    12,373.60x = 147,484,321.41
  5. Step 5: Solve for x
    x = 147,484,321.41/12,373.60
  6. Step 6: Final answer
    x = 11,919.27

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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.