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Finding the Fourth Proportional to 12,716.88, 17,548.98 and 7,051.65

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Solution

The fourth proportional to 12,716.88, 17,548.98 and 7,051.65 is: 9,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.88 : 17,548.98 = 7,051.65 : x
  2. Step 2: Convert to fraction form
    12,716.88/17,548.98 = 7,051.65/x
  3. Step 3: Cross multiply
    12,716.88x = 17,548.98 × 7,051.65
  4. Step 4: Simplify right side
    12,716.88x = 123,749,264.82
  5. Step 5: Solve for x
    x = 123,749,264.82/12,716.88
  6. Step 6: Final answer
    x = 9,731.10

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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.