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Finding the Fourth Proportional to 36,828.64, 55,242.93 and 9,126.64

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Solution

The fourth proportional to 36,828.64, 55,242.93 and 9,126.64 is: 13,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,828.64 : 55,242.93 = 9,126.64 : x
  2. Step 2: Convert to fraction form
    36,828.64/55,242.93 = 9,126.64/x
  3. Step 3: Cross multiply
    36,828.64x = 55,242.93 × 9,126.64
  4. Step 4: Simplify right side
    36,828.64x = 504,182,334.66
  5. Step 5: Solve for x
    x = 504,182,334.66/36,828.64
  6. Step 6: Final answer
    x = 13,689.95

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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.