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Finding the Fourth Proportional to 11,800.76, 16,285.05 and 6,495.46

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Solution

The fourth proportional to 11,800.76, 16,285.05 and 6,495.46 is: 8,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.76 : 16,285.05 = 6,495.46 : x
  2. Step 2: Convert to fraction form
    11,800.76/16,285.05 = 6,495.46/x
  3. Step 3: Cross multiply
    11,800.76x = 16,285.05 × 6,495.46
  4. Step 4: Simplify right side
    11,800.76x = 105,778,850.16
  5. Step 5: Solve for x
    x = 105,778,850.16/11,800.76
  6. Step 6: Final answer
    x = 8,963.74

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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.