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Finding the Fourth Proportional to 13,954.70, 20,907.12 and 7,366.16

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Solution

The fourth proportional to 13,954.70, 20,907.12 and 7,366.16 is: 11,036.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.70 : 20,907.12 = 7,366.16 : x
  2. Step 2: Convert to fraction form
    13,954.70/20,907.12 = 7,366.16/x
  3. Step 3: Cross multiply
    13,954.70x = 20,907.12 × 7,366.16
  4. Step 4: Simplify right side
    13,954.70x = 154,005,191.06
  5. Step 5: Solve for x
    x = 154,005,191.06/13,954.70
  6. Step 6: Final answer
    x = 11,036.08

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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.