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Finding the Fourth Proportional to 12,643.22, 17,447.01 and 7,053.14

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Solution

The fourth proportional to 12,643.22, 17,447.01 and 7,053.14 is: 9,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.22 : 17,447.01 = 7,053.14 : x
  2. Step 2: Convert to fraction form
    12,643.22/17,447.01 = 7,053.14/x
  3. Step 3: Cross multiply
    12,643.22x = 17,447.01 × 7,053.14
  4. Step 4: Simplify right side
    12,643.22x = 123,056,204.11
  5. Step 5: Solve for x
    x = 123,056,204.11/12,643.22
  6. Step 6: Final answer
    x = 9,732.98

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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.