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Finding the Fourth Proportional to 14,047.44, 19,378.89 and 9,009.24

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Solution

The fourth proportional to 14,047.44, 19,378.89 and 9,009.24 is: 12,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.44 : 19,378.89 = 9,009.24 : x
  2. Step 2: Convert to fraction form
    14,047.44/19,378.89 = 9,009.24/x
  3. Step 3: Cross multiply
    14,047.44x = 19,378.89 × 9,009.24
  4. Step 4: Simplify right side
    14,047.44x = 174,589,070.94
  5. Step 5: Solve for x
    x = 174,589,070.94/14,047.44
  6. Step 6: Final answer
    x = 12,428.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.