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Finding the Fourth Proportional to 14,393.94, 19,869.21 and 11,251.14

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Solution

The fourth proportional to 14,393.94, 19,869.21 and 11,251.14 is: 15,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.94 : 19,869.21 = 11,251.14 : x
  2. Step 2: Convert to fraction form
    14,393.94/19,869.21 = 11,251.14/x
  3. Step 3: Cross multiply
    14,393.94x = 19,869.21 × 11,251.14
  4. Step 4: Simplify right side
    14,393.94x = 223,551,263.40
  5. Step 5: Solve for x
    x = 223,551,263.40/14,393.94
  6. Step 6: Final answer
    x = 15,530.93

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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.