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Finding the Fourth Proportional to 12,995.30, 17,933.41 and 7,026.99

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Solution

The fourth proportional to 12,995.30, 17,933.41 and 7,026.99 is: 9,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.30 : 17,933.41 = 7,026.99 : x
  2. Step 2: Convert to fraction form
    12,995.30/17,933.41 = 7,026.99/x
  3. Step 3: Cross multiply
    12,995.30x = 17,933.41 × 7,026.99
  4. Step 4: Simplify right side
    12,995.30x = 126,017,892.74
  5. Step 5: Solve for x
    x = 126,017,892.74/12,995.30
  6. Step 6: Final answer
    x = 9,697.19

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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.