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Finding the Fourth Proportional to 12,376.24, 17,079.24 and 7,071.04

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Solution

The fourth proportional to 12,376.24, 17,079.24 and 7,071.04 is: 9,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.24 : 17,079.24 = 7,071.04 : x
  2. Step 2: Convert to fraction form
    12,376.24/17,079.24 = 7,071.04/x
  3. Step 3: Cross multiply
    12,376.24x = 17,079.24 × 7,071.04
  4. Step 4: Simplify right side
    12,376.24x = 120,767,989.21
  5. Step 5: Solve for x
    x = 120,767,989.21/12,376.24
  6. Step 6: Final answer
    x = 9,758.05

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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.