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Finding the Fourth Proportional to 14,049.80, 21,068.36 and 7,474.58

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Solution

The fourth proportional to 14,049.80, 21,068.36 and 7,474.58 is: 11,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.80 : 21,068.36 = 7,474.58 : x
  2. Step 2: Convert to fraction form
    14,049.80/21,068.36 = 7,474.58/x
  3. Step 3: Cross multiply
    14,049.80x = 21,068.36 × 7,474.58
  4. Step 4: Simplify right side
    14,049.80x = 157,477,142.29
  5. Step 5: Solve for x
    x = 157,477,142.29/14,049.80
  6. Step 6: Final answer
    x = 11,208.50

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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.