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Finding the Fourth Proportional to 11,800.99, 16,285.08 and 6,495.76

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Solution

The fourth proportional to 11,800.99, 16,285.08 and 6,495.76 is: 8,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.99 : 16,285.08 = 6,495.76 : x
  2. Step 2: Convert to fraction form
    11,800.99/16,285.08 = 6,495.76/x
  3. Step 3: Cross multiply
    11,800.99x = 16,285.08 × 6,495.76
  4. Step 4: Simplify right side
    11,800.99x = 105,783,971.26
  5. Step 5: Solve for x
    x = 105,783,971.26/11,800.99
  6. Step 6: Final answer
    x = 8,963.99

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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.