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Finding the Fourth Proportional to 9,579.94, 13,222.65 and 9,029.14

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Solution

The fourth proportional to 9,579.94, 13,222.65 and 9,029.14 is: 12,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.94 : 13,222.65 = 9,029.14 : x
  2. Step 2: Convert to fraction form
    9,579.94/13,222.65 = 9,029.14/x
  3. Step 3: Cross multiply
    9,579.94x = 13,222.65 × 9,029.14
  4. Step 4: Simplify right side
    9,579.94x = 119,389,158.02
  5. Step 5: Solve for x
    x = 119,389,158.02/9,579.94
  6. Step 6: Final answer
    x = 12,462.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.