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Finding the Fourth Proportional to 21,571.65, 32,372.24 and 7,531.67

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Solution

The fourth proportional to 21,571.65, 32,372.24 and 7,531.67 is: 11,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.65 : 32,372.24 = 7,531.67 : x
  2. Step 2: Convert to fraction form
    21,571.65/32,372.24 = 7,531.67/x
  3. Step 3: Cross multiply
    21,571.65x = 32,372.24 × 7,531.67
  4. Step 4: Simplify right side
    21,571.65x = 243,816,829.32
  5. Step 5: Solve for x
    x = 243,816,829.32/21,571.65
  6. Step 6: Final answer
    x = 11,302.65

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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.