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Finding the Fourth Proportional to 36,690.25, 55,035.51 and 8,988.25

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Solution

The fourth proportional to 36,690.25, 55,035.51 and 8,988.25 is: 13,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,690.25 : 55,035.51 = 8,988.25 : x
  2. Step 2: Convert to fraction form
    36,690.25/55,035.51 = 8,988.25/x
  3. Step 3: Cross multiply
    36,690.25x = 55,035.51 × 8,988.25
  4. Step 4: Simplify right side
    36,690.25x = 494,672,922.76
  5. Step 5: Solve for x
    x = 494,672,922.76/36,690.25
  6. Step 6: Final answer
    x = 13,482.41

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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.