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Finding the Fourth Proportional to 17,220.58, 23,764.08 and 9,666.31

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Solution

The fourth proportional to 17,220.58, 23,764.08 and 9,666.31 is: 13,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.58 : 23,764.08 = 9,666.31 : x
  2. Step 2: Convert to fraction form
    17,220.58/23,764.08 = 9,666.31/x
  3. Step 3: Cross multiply
    17,220.58x = 23,764.08 × 9,666.31
  4. Step 4: Simplify right side
    17,220.58x = 229,710,964.14
  5. Step 5: Solve for x
    x = 229,710,964.14/17,220.58
  6. Step 6: Final answer
    x = 13,339.33

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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.