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Finding the Fourth Proportional to 23,790.94, 35,689.47 and 7,989.18

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Solution

The fourth proportional to 23,790.94, 35,689.47 and 7,989.18 is: 11,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,790.94 : 35,689.47 = 7,989.18 : x
  2. Step 2: Convert to fraction form
    23,790.94/35,689.47 = 7,989.18/x
  3. Step 3: Cross multiply
    23,790.94x = 35,689.47 × 7,989.18
  4. Step 4: Simplify right side
    23,790.94x = 285,129,599.93
  5. Step 5: Solve for x
    x = 285,129,599.93/23,790.94
  6. Step 6: Final answer
    x = 11,984.80

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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.