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Finding the Fourth Proportional to 12,652,491.60, 18,978,737.40 and 12,033,176.40

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Solution

The fourth proportional to 12,652,491.60, 18,978,737.40 and 12,033,176.40 is: 18,049,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652,491.60 : 18,978,737.40 = 12,033,176.40 : x
  2. Step 2: Convert to fraction form
    12,652,491.60/18,978,737.40 = 12,033,176.40/x
  3. Step 3: Cross multiply
    12,652,491.60x = 18,978,737.40 × 12,033,176.40
  4. Step 4: Simplify right side
    12,652,491.60x = 228,374,494,983,477.34
  5. Step 5: Solve for x
    x = 228,374,494,983,477.34/12,652,491.60
  6. Step 6: Final answer
    x = 18,049,764.60

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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.