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Finding the Fourth Proportional to 19,486.40, 29,222.42 and 7,003.08

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Solution

The fourth proportional to 19,486.40, 29,222.42 and 7,003.08 is: 10,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.40 : 29,222.42 = 7,003.08 : x
  2. Step 2: Convert to fraction form
    19,486.40/29,222.42 = 7,003.08/x
  3. Step 3: Cross multiply
    19,486.40x = 29,222.42 × 7,003.08
  4. Step 4: Simplify right side
    19,486.40x = 204,646,910.04
  5. Step 5: Solve for x
    x = 204,646,910.04/19,486.40
  6. Step 6: Final answer
    x = 10,502.04

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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.