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Finding the Fourth Proportional to 21,672.94, 32,515.18 and 9,193.48

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Solution

The fourth proportional to 21,672.94, 32,515.18 and 9,193.48 is: 13,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.94 : 32,515.18 = 9,193.48 : x
  2. Step 2: Convert to fraction form
    21,672.94/32,515.18 = 9,193.48/x
  3. Step 3: Cross multiply
    21,672.94x = 32,515.18 × 9,193.48
  4. Step 4: Simplify right side
    21,672.94x = 298,927,657.03
  5. Step 5: Solve for x
    x = 298,927,657.03/21,672.94
  6. Step 6: Final answer
    x = 13,792.67

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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.