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Finding the Fourth Proportional to 36,706.16, 55,042.20 and 17,987.12

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Solution

The fourth proportional to 36,706.16, 55,042.20 and 17,987.12 is: 26,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,706.16 : 55,042.20 = 17,987.12 : x
  2. Step 2: Convert to fraction form
    36,706.16/55,042.20 = 17,987.12/x
  3. Step 3: Cross multiply
    36,706.16x = 55,042.20 × 17,987.12
  4. Step 4: Simplify right side
    36,706.16x = 990,050,656.46
  5. Step 5: Solve for x
    x = 990,050,656.46/36,706.16
  6. Step 6: Final answer
    x = 26,972.33

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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.