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Finding the Fourth Proportional to 6,904.08, 9,515.30 and 5,636.97

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Solution

The fourth proportional to 6,904.08, 9,515.30 and 5,636.97 is: 7,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904.08 : 9,515.30 = 5,636.97 : x
  2. Step 2: Convert to fraction form
    6,904.08/9,515.30 = 5,636.97/x
  3. Step 3: Cross multiply
    6,904.08x = 9,515.30 × 5,636.97
  4. Step 4: Simplify right side
    6,904.08x = 53,637,384.88
  5. Step 5: Solve for x
    x = 53,637,384.88/6,904.08
  6. Step 6: Final answer
    x = 7,768.95

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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.