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Finding the Fourth Proportional to 12,369.76, 17,070.12 and 6,704.48

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Solution

The fourth proportional to 12,369.76, 17,070.12 and 6,704.48 is: 9,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.76 : 17,070.12 = 6,704.48 : x
  2. Step 2: Convert to fraction form
    12,369.76/17,070.12 = 6,704.48/x
  3. Step 3: Cross multiply
    12,369.76x = 17,070.12 × 6,704.48
  4. Step 4: Simplify right side
    12,369.76x = 114,446,278.14
  5. Step 5: Solve for x
    x = 114,446,278.14/12,369.76
  6. Step 6: Final answer
    x = 9,252.10

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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.