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Finding the Fourth Proportional to 19,501.89, 29,249.16 and 7,655.16

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Solution

The fourth proportional to 19,501.89, 29,249.16 and 7,655.16 is: 11,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,501.89 : 29,249.16 = 7,655.16 : x
  2. Step 2: Convert to fraction form
    19,501.89/29,249.16 = 7,655.16/x
  3. Step 3: Cross multiply
    19,501.89x = 29,249.16 × 7,655.16
  4. Step 4: Simplify right side
    19,501.89x = 223,906,999.67
  5. Step 5: Solve for x
    x = 223,906,999.67/19,501.89
  6. Step 6: Final answer
    x = 11,481.30

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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.