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Finding the Fourth Proportional to 24,689.80, 37,034.70 and 18,128.80

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Solution

The fourth proportional to 24,689.80, 37,034.70 and 18,128.80 is: 27,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,689.80 : 37,034.70 = 18,128.80 : x
  2. Step 2: Convert to fraction form
    24,689.80/37,034.70 = 18,128.80/x
  3. Step 3: Cross multiply
    24,689.80x = 37,034.70 × 18,128.80
  4. Step 4: Simplify right side
    24,689.80x = 671,394,669.36
  5. Step 5: Solve for x
    x = 671,394,669.36/24,689.80
  6. Step 6: Final answer
    x = 27,193.20

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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.