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Finding the Fourth Proportional to 23,666.80, 35,470.05 and 12,578.80

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Solution

The fourth proportional to 23,666.80, 35,470.05 and 12,578.80 is: 18,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,666.80 : 35,470.05 = 12,578.80 : x
  2. Step 2: Convert to fraction form
    23,666.80/35,470.05 = 12,578.80/x
  3. Step 3: Cross multiply
    23,666.80x = 35,470.05 × 12,578.80
  4. Step 4: Simplify right side
    23,666.80x = 446,170,664.94
  5. Step 5: Solve for x
    x = 446,170,664.94/23,666.80
  6. Step 6: Final answer
    x = 18,852.18

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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.