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Finding the Fourth Proportional to 16,609.12, 22,921.16 and 9,055.72

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Solution

The fourth proportional to 16,609.12, 22,921.16 and 9,055.72 is: 12,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609.12 : 22,921.16 = 9,055.72 : x
  2. Step 2: Convert to fraction form
    16,609.12/22,921.16 = 9,055.72/x
  3. Step 3: Cross multiply
    16,609.12x = 22,921.16 × 9,055.72
  4. Step 4: Simplify right side
    16,609.12x = 207,567,607.04
  5. Step 5: Solve for x
    x = 207,567,607.04/16,609.12
  6. Step 6: Final answer
    x = 12,497.21

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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.