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Finding the Fourth Proportional to 14,108.67, 21,164.05 and 4,748.65

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Solution

The fourth proportional to 14,108.67, 21,164.05 and 4,748.65 is: 7,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.67 : 21,164.05 = 4,748.65 : x
  2. Step 2: Convert to fraction form
    14,108.67/21,164.05 = 4,748.65/x
  3. Step 3: Cross multiply
    14,108.67x = 21,164.05 × 4,748.65
  4. Step 4: Simplify right side
    14,108.67x = 100,500,619.06
  5. Step 5: Solve for x
    x = 100,500,619.06/14,108.67
  6. Step 6: Final answer
    x = 7,123.32

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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.