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Finding the Fourth Proportional to 19,609.66, 29,410.56 and 9,610.12

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Solution

The fourth proportional to 19,609.66, 29,410.56 and 9,610.12 is: 14,413.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.66 : 29,410.56 = 9,610.12 : x
  2. Step 2: Convert to fraction form
    19,609.66/29,410.56 = 9,610.12/x
  3. Step 3: Cross multiply
    19,609.66x = 29,410.56 × 9,610.12
  4. Step 4: Simplify right side
    19,609.66x = 282,639,010.87
  5. Step 5: Solve for x
    x = 282,639,010.87/19,609.66
  6. Step 6: Final answer
    x = 14,413.25

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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.