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Finding the Fourth Proportional to 19,687.81, 29,525.29 and 6,536.65

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Solution

The fourth proportional to 19,687.81, 29,525.29 and 6,536.65 is: 9,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.81 : 29,525.29 = 6,536.65 : x
  2. Step 2: Convert to fraction form
    19,687.81/29,525.29 = 6,536.65/x
  3. Step 3: Cross multiply
    19,687.81x = 29,525.29 × 6,536.65
  4. Step 4: Simplify right side
    19,687.81x = 192,996,486.88
  5. Step 5: Solve for x
    x = 192,996,486.88/19,687.81
  6. Step 6: Final answer
    x = 9,802.84

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1.5x scale

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.