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Finding the Fourth Proportional to 15,210.69, 22,797.20 and 8,616.89

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Solution

The fourth proportional to 15,210.69, 22,797.20 and 8,616.89 is: 12,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.69 : 22,797.20 = 8,616.89 : x
  2. Step 2: Convert to fraction form
    15,210.69/22,797.20 = 8,616.89/x
  3. Step 3: Cross multiply
    15,210.69x = 22,797.20 × 8,616.89
  4. Step 4: Simplify right side
    15,210.69x = 196,440,807.64
  5. Step 5: Solve for x
    x = 196,440,807.64/15,210.69
  6. Step 6: Final answer
    x = 12,914.65

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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.