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Finding the Fourth Proportional to 11,893.55, 16,424.13 and 8,904.19

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Solution

The fourth proportional to 11,893.55, 16,424.13 and 8,904.19 is: 12,296.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.55 : 16,424.13 = 8,904.19 : x
  2. Step 2: Convert to fraction form
    11,893.55/16,424.13 = 8,904.19/x
  3. Step 3: Cross multiply
    11,893.55x = 16,424.13 × 8,904.19
  4. Step 4: Simplify right side
    11,893.55x = 146,243,574.10
  5. Step 5: Solve for x
    x = 146,243,574.10/11,893.55
  6. Step 6: Final answer
    x = 12,296.04

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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.