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Finding the Fourth Proportional to 36,609.18, 54,917.28 and 9,955.50

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Solution

The fourth proportional to 36,609.18, 54,917.28 and 9,955.50 is: 14,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,609.18 : 54,917.28 = 9,955.50 : x
  2. Step 2: Convert to fraction form
    36,609.18/54,917.28 = 9,955.50/x
  3. Step 3: Cross multiply
    36,609.18x = 54,917.28 × 9,955.50
  4. Step 4: Simplify right side
    36,609.18x = 546,728,981.04
  5. Step 5: Solve for x
    x = 546,728,981.04/36,609.18
  6. Step 6: Final answer
    x = 14,934.20

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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.