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Finding the Fourth Proportional to 23,687.80, 35,531.70 and 9,863.80

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Solution

The fourth proportional to 23,687.80, 35,531.70 and 9,863.80 is: 14,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,687.80 : 35,531.70 = 9,863.80 : x
  2. Step 2: Convert to fraction form
    23,687.80/35,531.70 = 9,863.80/x
  3. Step 3: Cross multiply
    23,687.80x = 35,531.70 × 9,863.80
  4. Step 4: Simplify right side
    23,687.80x = 350,477,582.46
  5. Step 5: Solve for x
    x = 350,477,582.46/23,687.80
  6. Step 6: Final answer
    x = 14,795.70

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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.