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Finding the Fourth Proportional to 14,054.10, 21,078.98 and 6,154.88

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Solution

The fourth proportional to 14,054.10, 21,078.98 and 6,154.88 is: 9,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,054.10 : 21,078.98 = 6,154.88 : x
  2. Step 2: Convert to fraction form
    14,054.10/21,078.98 = 6,154.88/x
  3. Step 3: Cross multiply
    14,054.10x = 21,078.98 × 6,154.88
  4. Step 4: Simplify right side
    14,054.10x = 129,738,561.65
  5. Step 5: Solve for x
    x = 129,738,561.65/14,054.10
  6. Step 6: Final answer
    x = 9,231.37

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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.