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Finding the Fourth Proportional to 14,425.35, 21,642.44 and 7,028.75

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Solution

The fourth proportional to 14,425.35, 21,642.44 and 7,028.75 is: 10,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.35 : 21,642.44 = 7,028.75 : x
  2. Step 2: Convert to fraction form
    14,425.35/21,642.44 = 7,028.75/x
  3. Step 3: Cross multiply
    14,425.35x = 21,642.44 × 7,028.75
  4. Step 4: Simplify right side
    14,425.35x = 152,119,156.79
  5. Step 5: Solve for x
    x = 152,119,156.79/14,425.35
  6. Step 6: Final answer
    x = 10,545.27

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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.