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Finding the Fourth Proportional to 15,990.76, 23,971.62 and 5,596.84

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Solution

The fourth proportional to 15,990.76, 23,971.62 and 5,596.84 is: 8,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.76 : 23,971.62 = 5,596.84 : x
  2. Step 2: Convert to fraction form
    15,990.76/23,971.62 = 5,596.84/x
  3. Step 3: Cross multiply
    15,990.76x = 23,971.62 × 5,596.84
  4. Step 4: Simplify right side
    15,990.76x = 134,165,321.68
  5. Step 5: Solve for x
    x = 134,165,321.68/15,990.76
  6. Step 6: Final answer
    x = 8,390.18

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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.