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Finding the Fourth Proportional to 8,616.69, 11,895.55 and 5,798.88

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Solution

The fourth proportional to 8,616.69, 11,895.55 and 5,798.88 is: 8,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.69 : 11,895.55 = 5,798.88 : x
  2. Step 2: Convert to fraction form
    8,616.69/11,895.55 = 5,798.88/x
  3. Step 3: Cross multiply
    8,616.69x = 11,895.55 × 5,798.88
  4. Step 4: Simplify right side
    8,616.69x = 68,980,852.49
  5. Step 5: Solve for x
    x = 68,980,852.49/8,616.69
  6. Step 6: Final answer
    x = 8,005.49

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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.