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Finding the Fourth Proportional to 17,686.63, 24,407.15 and 9,728.68

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Solution

The fourth proportional to 17,686.63, 24,407.15 and 9,728.68 is: 13,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.63 : 24,407.15 = 9,728.68 : x
  2. Step 2: Convert to fraction form
    17,686.63/24,407.15 = 9,728.68/x
  3. Step 3: Cross multiply
    17,686.63x = 24,407.15 × 9,728.68
  4. Step 4: Simplify right side
    17,686.63x = 237,449,333.93
  5. Step 5: Solve for x
    x = 237,449,333.93/17,686.63
  6. Step 6: Final answer
    x = 13,425.36

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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.