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Finding the Fourth Proportional to 17,858.74, 24,645.86 and 9,900.99

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Solution

The fourth proportional to 17,858.74, 24,645.86 and 9,900.99 is: 13,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.74 : 24,645.86 = 9,900.99 : x
  2. Step 2: Convert to fraction form
    17,858.74/24,645.86 = 9,900.99/x
  3. Step 3: Cross multiply
    17,858.74x = 24,645.86 × 9,900.99
  4. Step 4: Simplify right side
    17,858.74x = 244,018,413.40
  5. Step 5: Solve for x
    x = 244,018,413.40/17,858.74
  6. Step 6: Final answer
    x = 13,663.81

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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.