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Finding the Fourth Proportional to 11,305.50, 15,601.78 and 6,269.93

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Solution

The fourth proportional to 11,305.50, 15,601.78 and 6,269.93 is: 8,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.50 : 15,601.78 = 6,269.93 : x
  2. Step 2: Convert to fraction form
    11,305.50/15,601.78 = 6,269.93/x
  3. Step 3: Cross multiply
    11,305.50x = 15,601.78 × 6,269.93
  4. Step 4: Simplify right side
    11,305.50x = 97,822,068.48
  5. Step 5: Solve for x
    x = 97,822,068.48/11,305.50
  6. Step 6: Final answer
    x = 8,652.61

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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.