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Finding the Fourth Proportional to 11,482.15, 15,847.09 and 7,008.49

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Solution

The fourth proportional to 11,482.15, 15,847.09 and 7,008.49 is: 9,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,482.15 : 15,847.09 = 7,008.49 : x
  2. Step 2: Convert to fraction form
    11,482.15/15,847.09 = 7,008.49/x
  3. Step 3: Cross multiply
    11,482.15x = 15,847.09 × 7,008.49
  4. Step 4: Simplify right side
    11,482.15x = 111,064,171.79
  5. Step 5: Solve for x
    x = 111,064,171.79/11,482.15
  6. Step 6: Final answer
    x = 9,672.77

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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.