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Finding the Fourth Proportional to 21,669.75, 32,504.63 and 5,253.75

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Solution

The fourth proportional to 21,669.75, 32,504.63 and 5,253.75 is: 7,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.75 : 32,504.63 = 5,253.75 : x
  2. Step 2: Convert to fraction form
    21,669.75/32,504.63 = 5,253.75/x
  3. Step 3: Cross multiply
    21,669.75x = 32,504.63 × 5,253.75
  4. Step 4: Simplify right side
    21,669.75x = 170,771,173.59
  5. Step 5: Solve for x
    x = 170,771,173.59/21,669.75
  6. Step 6: Final answer
    x = 7,880.63

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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.