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Finding the Fourth Proportional to 36,259.70, 54,411.10 and 19,619.40

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Solution

The fourth proportional to 36,259.70, 54,411.10 and 19,619.40 is: 29,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,259.70 : 54,411.10 = 19,619.40 : x
  2. Step 2: Convert to fraction form
    36,259.70/54,411.10 = 19,619.40/x
  3. Step 3: Cross multiply
    36,259.70x = 54,411.10 × 19,619.40
  4. Step 4: Simplify right side
    36,259.70x = 1,067,513,135.34
  5. Step 5: Solve for x
    x = 1,067,513,135.34/36,259.70
  6. Step 6: Final answer
    x = 29,440.76

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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.