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Finding the Fourth Proportional to 19,686.74, 29,536.07 and 7,034.84

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Solution

The fourth proportional to 19,686.74, 29,536.07 and 7,034.84 is: 10,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.74 : 29,536.07 = 7,034.84 : x
  2. Step 2: Convert to fraction form
    19,686.74/29,536.07 = 7,034.84/x
  3. Step 3: Cross multiply
    19,686.74x = 29,536.07 × 7,034.84
  4. Step 4: Simplify right side
    19,686.74x = 207,781,517.89
  5. Step 5: Solve for x
    x = 207,781,517.89/19,686.74
  6. Step 6: Final answer
    x = 10,554.39

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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.