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Finding the Fourth Proportional to 13,963.17, 20,945.70 and 4,729.17

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Solution

The fourth proportional to 13,963.17, 20,945.70 and 4,729.17 is: 7,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.17 : 20,945.70 = 4,729.17 : x
  2. Step 2: Convert to fraction form
    13,963.17/20,945.70 = 4,729.17/x
  3. Step 3: Cross multiply
    13,963.17x = 20,945.70 × 4,729.17
  4. Step 4: Simplify right side
    13,963.17x = 99,055,776.07
  5. Step 5: Solve for x
    x = 99,055,776.07/13,963.17
  6. Step 6: Final answer
    x = 7,094.08

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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.