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Finding the Fourth Proportional to 60,544.17, 90,830.84 and 18,991.17

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Solution

The fourth proportional to 60,544.17, 90,830.84 and 18,991.17 is: 28,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,544.17 : 90,830.84 = 18,991.17 : x
  2. Step 2: Convert to fraction form
    60,544.17/90,830.84 = 18,991.17/x
  3. Step 3: Cross multiply
    60,544.17x = 90,830.84 × 18,991.17
  4. Step 4: Simplify right side
    60,544.17x = 1,724,983,923.68
  5. Step 5: Solve for x
    x = 1,724,983,923.68/60,544.17
  6. Step 6: Final answer
    x = 28,491.33

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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.