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Finding the Fourth Proportional to 9,407.21, 14,027.92 and 9,322.90

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Solution

The fourth proportional to 9,407.21, 14,027.92 and 9,322.90 is: 13,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,407.21 : 14,027.92 = 9,322.90 : x
  2. Step 2: Convert to fraction form
    9,407.21/14,027.92 = 9,322.90/x
  3. Step 3: Cross multiply
    9,407.21x = 14,027.92 × 9,322.90
  4. Step 4: Simplify right side
    9,407.21x = 130,780,836.99
  5. Step 5: Solve for x
    x = 130,780,836.99/9,407.21
  6. Step 6: Final answer
    x = 13,902.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.