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Finding the Fourth Proportional to 9,420.75, 14,103.64 and 7,059.30

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Solution

The fourth proportional to 9,420.75, 14,103.64 and 7,059.30 is: 10,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.75 : 14,103.64 = 7,059.30 : x
  2. Step 2: Convert to fraction form
    9,420.75/14,103.64 = 7,059.30/x
  3. Step 3: Cross multiply
    9,420.75x = 14,103.64 × 7,059.30
  4. Step 4: Simplify right side
    9,420.75x = 99,561,720.04
  5. Step 5: Solve for x
    x = 99,561,720.04/9,420.75
  6. Step 6: Final answer
    x = 10,568.34

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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.