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Finding the Fourth Proportional to 17,709.80, 26,526.30 and 14,637.80

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Solution

The fourth proportional to 17,709.80, 26,526.30 and 14,637.80 is: 21,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.80 : 26,526.30 = 14,637.80 : x
  2. Step 2: Convert to fraction form
    17,709.80/26,526.30 = 14,637.80/x
  3. Step 3: Cross multiply
    17,709.80x = 26,526.30 × 14,637.80
  4. Step 4: Simplify right side
    17,709.80x = 388,286,674.14
  5. Step 5: Solve for x
    x = 388,286,674.14/17,709.80
  6. Step 6: Final answer
    x = 21,924.96

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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.