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Finding the Fourth Proportional to 14,401.35, 19,881.71 and 9,949.07

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Solution

The fourth proportional to 14,401.35, 19,881.71 and 9,949.07 is: 13,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401.35 : 19,881.71 = 9,949.07 : x
  2. Step 2: Convert to fraction form
    14,401.35/19,881.71 = 9,949.07/x
  3. Step 3: Cross multiply
    14,401.35x = 19,881.71 × 9,949.07
  4. Step 4: Simplify right side
    14,401.35x = 197,804,375.36
  5. Step 5: Solve for x
    x = 197,804,375.36/14,401.35
  6. Step 6: Final answer
    x = 13,735.13

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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.