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Finding the Fourth Proportional to 16,605.51, 22,917.92 and 9,534.75

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Solution

The fourth proportional to 16,605.51, 22,917.92 and 9,534.75 is: 13,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605.51 : 22,917.92 = 9,534.75 : x
  2. Step 2: Convert to fraction form
    16,605.51/22,917.92 = 9,534.75/x
  3. Step 3: Cross multiply
    16,605.51x = 22,917.92 × 9,534.75
  4. Step 4: Simplify right side
    16,605.51x = 218,516,590.05
  5. Step 5: Solve for x
    x = 218,516,590.05/16,605.51
  6. Step 6: Final answer
    x = 13,159.28

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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.