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Finding the Fourth Proportional to 21,593.81, 32,394.74 and 7,553.51

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Solution

The fourth proportional to 21,593.81, 32,394.74 and 7,553.51 is: 11,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.81 : 32,394.74 = 7,553.51 : x
  2. Step 2: Convert to fraction form
    21,593.81/32,394.74 = 7,553.51/x
  3. Step 3: Cross multiply
    21,593.81x = 32,394.74 × 7,553.51
  4. Step 4: Simplify right side
    21,593.81x = 244,693,914.28
  5. Step 5: Solve for x
    x = 244,693,914.28/21,593.81
  6. Step 6: Final answer
    x = 11,331.67

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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.