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Finding the Fourth Proportional to 19,303.93, 28,961.78 and 9,441.78

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Solution

The fourth proportional to 19,303.93, 28,961.78 and 9,441.78 is: 14,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.93 : 28,961.78 = 9,441.78 : x
  2. Step 2: Convert to fraction form
    19,303.93/28,961.78 = 9,441.78/x
  3. Step 3: Cross multiply
    19,303.93x = 28,961.78 × 9,441.78
  4. Step 4: Simplify right side
    19,303.93x = 273,450,755.17
  5. Step 5: Solve for x
    x = 273,450,755.17/19,303.93
  6. Step 6: Final answer
    x = 14,165.55

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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.