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Finding the Fourth Proportional to 12,180.08, 16,808.99 and 6,875.08

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Solution

The fourth proportional to 12,180.08, 16,808.99 and 6,875.08 is: 9,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.08 : 16,808.99 = 6,875.08 : x
  2. Step 2: Convert to fraction form
    12,180.08/16,808.99 = 6,875.08/x
  3. Step 3: Cross multiply
    12,180.08x = 16,808.99 × 6,875.08
  4. Step 4: Simplify right side
    12,180.08x = 115,563,150.97
  5. Step 5: Solve for x
    x = 115,563,150.97/12,180.08
  6. Step 6: Final answer
    x = 9,487.88

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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.