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Finding the Fourth Proportional to 20,055.65, 30,063.64 and 9,507.17

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Solution

The fourth proportional to 20,055.65, 30,063.64 and 9,507.17 is: 14,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.65 : 30,063.64 = 9,507.17 : x
  2. Step 2: Convert to fraction form
    20,055.65/30,063.64 = 9,507.17/x
  3. Step 3: Cross multiply
    20,055.65x = 30,063.64 × 9,507.17
  4. Step 4: Simplify right side
    20,055.65x = 285,820,136.30
  5. Step 5: Solve for x
    x = 285,820,136.30/20,055.65
  6. Step 6: Final answer
    x = 14,251.35

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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.