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Finding the Fourth Proportional to 16,558.89, 22,851.16 and 9,390.16

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Solution

The fourth proportional to 16,558.89, 22,851.16 and 9,390.16 is: 12,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,558.89 : 22,851.16 = 9,390.16 : x
  2. Step 2: Convert to fraction form
    16,558.89/22,851.16 = 9,390.16/x
  3. Step 3: Cross multiply
    16,558.89x = 22,851.16 × 9,390.16
  4. Step 4: Simplify right side
    16,558.89x = 214,576,025.11
  5. Step 5: Solve for x
    x = 214,576,025.11/16,558.89
  6. Step 6: Final answer
    x = 12,958.36

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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.