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Finding the Fourth Proportional to 12,074.58, 16,664.13 and 7,875.54

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Solution

The fourth proportional to 12,074.58, 16,664.13 and 7,875.54 is: 10,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.58 : 16,664.13 = 7,875.54 : x
  2. Step 2: Convert to fraction form
    12,074.58/16,664.13 = 7,875.54/x
  3. Step 3: Cross multiply
    12,074.58x = 16,664.13 × 7,875.54
  4. Step 4: Simplify right side
    12,074.58x = 131,239,022.38
  5. Step 5: Solve for x
    x = 131,239,022.38/12,074.58
  6. Step 6: Final answer
    x = 10,869.03

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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.