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Finding the Fourth Proportional to 36,705.80, 55,058.70 and 9,003.80

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Solution

The fourth proportional to 36,705.80, 55,058.70 and 9,003.80 is: 13,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.80 : 55,058.70 = 9,003.80 : x
  2. Step 2: Convert to fraction form
    36,705.80/55,058.70 = 9,003.80/x
  3. Step 3: Cross multiply
    36,705.80x = 55,058.70 × 9,003.80
  4. Step 4: Simplify right side
    36,705.80x = 495,737,523.06
  5. Step 5: Solve for x
    x = 495,737,523.06/36,705.80
  6. Step 6: Final answer
    x = 13,505.70

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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.