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Finding the Fourth Proportional to 11,925.12, 17,869.44 and 8,015.04

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Solution

The fourth proportional to 11,925.12, 17,869.44 and 8,015.04 is: 12,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.12 : 17,869.44 = 8,015.04 : x
  2. Step 2: Convert to fraction form
    11,925.12/17,869.44 = 8,015.04/x
  3. Step 3: Cross multiply
    11,925.12x = 17,869.44 × 8,015.04
  4. Step 4: Simplify right side
    11,925.12x = 143,224,276.38
  5. Step 5: Solve for x
    x = 143,224,276.38/11,925.12
  6. Step 6: Final answer
    x = 12,010.30

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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.