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Finding the Fourth Proportional to 18,655,683.84, 27,984,529.08 and 5,877,188.64

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Solution

The fourth proportional to 18,655,683.84, 27,984,529.08 and 5,877,188.64 is: 8,816,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655,683.84 : 27,984,529.08 = 5,877,188.64 : x
  2. Step 2: Convert to fraction form
    18,655,683.84/27,984,529.08 = 5,877,188.64/x
  3. Step 3: Cross multiply
    18,655,683.84x = 27,984,529.08 × 5,877,188.64
  4. Step 4: Simplify right side
    18,655,683.84x = 164,470,356,404,725.62
  5. Step 5: Solve for x
    x = 164,470,356,404,725.62/18,655,683.84
  6. Step 6: Final answer
    x = 8,816,099.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.