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Finding the Fourth Proportional to 17,331.16, 23,913.86 and 9,879.16

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Solution

The fourth proportional to 17,331.16, 23,913.86 and 9,879.16 is: 13,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,331.16 : 23,913.86 = 9,879.16 : x
  2. Step 2: Convert to fraction form
    17,331.16/23,913.86 = 9,879.16/x
  3. Step 3: Cross multiply
    17,331.16x = 23,913.86 × 9,879.16
  4. Step 4: Simplify right side
    17,331.16x = 236,248,849.16
  5. Step 5: Solve for x
    x = 236,248,849.16/17,331.16
  6. Step 6: Final answer
    x = 13,631.45

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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.