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Finding the Fourth Proportional to 14,405.84, 21,609.44 and 7,001.48

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Solution

The fourth proportional to 14,405.84, 21,609.44 and 7,001.48 is: 10,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.84 : 21,609.44 = 7,001.48 : x
  2. Step 2: Convert to fraction form
    14,405.84/21,609.44 = 7,001.48/x
  3. Step 3: Cross multiply
    14,405.84x = 21,609.44 × 7,001.48
  4. Step 4: Simplify right side
    14,405.84x = 151,297,971.43
  5. Step 5: Solve for x
    x = 151,297,971.43/14,405.84
  6. Step 6: Final answer
    x = 10,502.55

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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.