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Finding the Fourth Proportional to 12,315.62, 16,995.58 and 6,726.62

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Solution

The fourth proportional to 12,315.62, 16,995.58 and 6,726.62 is: 9,282.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.62 : 16,995.58 = 6,726.62 : x
  2. Step 2: Convert to fraction form
    12,315.62/16,995.58 = 6,726.62/x
  3. Step 3: Cross multiply
    12,315.62x = 16,995.58 × 6,726.62
  4. Step 4: Simplify right side
    12,315.62x = 114,322,808.34
  5. Step 5: Solve for x
    x = 114,322,808.34/12,315.62
  6. Step 6: Final answer
    x = 9,282.75

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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.