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Finding the Fourth Proportional to 14,069.84, 21,105.12 and 4,835.84

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Solution

The fourth proportional to 14,069.84, 21,105.12 and 4,835.84 is: 7,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.84 : 21,105.12 = 4,835.84 : x
  2. Step 2: Convert to fraction form
    14,069.84/21,105.12 = 4,835.84/x
  3. Step 3: Cross multiply
    14,069.84x = 21,105.12 × 4,835.84
  4. Step 4: Simplify right side
    14,069.84x = 102,060,983.50
  5. Step 5: Solve for x
    x = 102,060,983.50/14,069.84
  6. Step 6: Final answer
    x = 7,253.88

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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.