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Finding the Fourth Proportional to 12,633.36, 17,437.86 and 7,329.48

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Solution

The fourth proportional to 12,633.36, 17,437.86 and 7,329.48 is: 10,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.36 : 17,437.86 = 7,329.48 : x
  2. Step 2: Convert to fraction form
    12,633.36/17,437.86 = 7,329.48/x
  3. Step 3: Cross multiply
    12,633.36x = 17,437.86 × 7,329.48
  4. Step 4: Simplify right side
    12,633.36x = 127,810,446.11
  5. Step 5: Solve for x
    x = 127,810,446.11/12,633.36
  6. Step 6: Final answer
    x = 10,116.90

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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.