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Finding the Fourth Proportional to 13,037.66, 17,991.98 and 7,069.31

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Solution

The fourth proportional to 13,037.66, 17,991.98 and 7,069.31 is: 9,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,037.66 : 17,991.98 = 7,069.31 : x
  2. Step 2: Convert to fraction form
    13,037.66/17,991.98 = 7,069.31/x
  3. Step 3: Cross multiply
    13,037.66x = 17,991.98 × 7,069.31
  4. Step 4: Simplify right side
    13,037.66x = 127,190,758.83
  5. Step 5: Solve for x
    x = 127,190,758.83/13,037.66
  6. Step 6: Final answer
    x = 9,755.65

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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.