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Finding the Fourth Proportional to 8,606.64, 11,881.94 and 5,424.04

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Solution

The fourth proportional to 8,606.64, 11,881.94 and 5,424.04 is: 7,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.64 : 11,881.94 = 5,424.04 : x
  2. Step 2: Convert to fraction form
    8,606.64/11,881.94 = 5,424.04/x
  3. Step 3: Cross multiply
    8,606.64x = 11,881.94 × 5,424.04
  4. Step 4: Simplify right side
    8,606.64x = 64,448,117.84
  5. Step 5: Solve for x
    x = 64,448,117.84/8,606.64
  6. Step 6: Final answer
    x = 7,488.19

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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.