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Finding the Fourth Proportional to 6,885.27, 9,498.51 and 4,992.71

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Solution

The fourth proportional to 6,885.27, 9,498.51 and 4,992.71 is: 6,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.27 : 9,498.51 = 4,992.71 : x
  2. Step 2: Convert to fraction form
    6,885.27/9,498.51 = 4,992.71/x
  3. Step 3: Cross multiply
    6,885.27x = 9,498.51 × 4,992.71
  4. Step 4: Simplify right side
    6,885.27x = 47,423,258.37
  5. Step 5: Solve for x
    x = 47,423,258.37/6,885.27
  6. Step 6: Final answer
    x = 6,887.64

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Half scale
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Double scale
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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.