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Finding the Fourth Proportional to 11,254.40, 16,849.20 and 9,958.40

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Solution

The fourth proportional to 11,254.40, 16,849.20 and 9,958.40 is: 14,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.40 : 16,849.20 = 9,958.40 : x
  2. Step 2: Convert to fraction form
    11,254.40/16,849.20 = 9,958.40/x
  3. Step 3: Cross multiply
    11,254.40x = 16,849.20 × 9,958.40
  4. Step 4: Simplify right side
    11,254.40x = 167,791,073.28
  5. Step 5: Solve for x
    x = 167,791,073.28/11,254.40
  6. Step 6: Final answer
    x = 14,908.93

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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.