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Finding the Fourth Proportional to 37,248.57, 55,874.57 and 12,290.80

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Solution

The fourth proportional to 37,248.57, 55,874.57 and 12,290.80 is: 18,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,248.57 : 55,874.57 = 12,290.80 : x
  2. Step 2: Convert to fraction form
    37,248.57/55,874.57 = 12,290.80/x
  3. Step 3: Cross multiply
    37,248.57x = 55,874.57 × 12,290.80
  4. Step 4: Simplify right side
    37,248.57x = 686,743,164.96
  5. Step 5: Solve for x
    x = 686,743,164.96/37,248.57
  6. Step 6: Final answer
    x = 18,436.77

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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.