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Finding the Fourth Proportional to 23,649.30, 35,443.80 and 12,561.30

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Solution

The fourth proportional to 23,649.30, 35,443.80 and 12,561.30 is: 18,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,649.30 : 35,443.80 = 12,561.30 : x
  2. Step 2: Convert to fraction form
    23,649.30/35,443.80 = 12,561.30/x
  3. Step 3: Cross multiply
    23,649.30x = 35,443.80 × 12,561.30
  4. Step 4: Simplify right side
    23,649.30x = 445,220,204.94
  5. Step 5: Solve for x
    x = 445,220,204.94/23,649.30
  6. Step 6: Final answer
    x = 18,825.94

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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.