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Finding the Fourth Proportional to 28,369.81, 42,554.07 and 7,593.31

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Solution

The fourth proportional to 28,369.81, 42,554.07 and 7,593.31 is: 11,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.81 : 42,554.07 = 7,593.31 : x
  2. Step 2: Convert to fraction form
    28,369.81/42,554.07 = 7,593.31/x
  3. Step 3: Cross multiply
    28,369.81x = 42,554.07 × 7,593.31
  4. Step 4: Simplify right side
    28,369.81x = 323,126,245.27
  5. Step 5: Solve for x
    x = 323,126,245.27/28,369.81
  6. Step 6: Final answer
    x = 11,389.79

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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.