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Finding the Fourth Proportional to 12,655.98, 17,463.96 and 7,351.92

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Solution

The fourth proportional to 12,655.98, 17,463.96 and 7,351.92 is: 10,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.98 : 17,463.96 = 7,351.92 : x
  2. Step 2: Convert to fraction form
    12,655.98/17,463.96 = 7,351.92/x
  3. Step 3: Cross multiply
    12,655.98x = 17,463.96 × 7,351.92
  4. Step 4: Simplify right side
    12,655.98x = 128,393,636.80
  5. Step 5: Solve for x
    x = 128,393,636.80/12,655.98
  6. Step 6: Final answer
    x = 10,144.90

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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.