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Finding the Fourth Proportional to 12,562,379.60, 18,843,569.40 and 4,484,476.40

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Solution

The fourth proportional to 12,562,379.60, 18,843,569.40 and 4,484,476.40 is: 6,726,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562,379.60 : 18,843,569.40 = 4,484,476.40 : x
  2. Step 2: Convert to fraction form
    12,562,379.60/18,843,569.40 = 4,484,476.40/x
  3. Step 3: Cross multiply
    12,562,379.60x = 18,843,569.40 × 4,484,476.40
  4. Step 4: Simplify right side
    12,562,379.60x = 84,503,542,266,062.16
  5. Step 5: Solve for x
    x = 84,503,542,266,062.16/12,562,379.60
  6. Step 6: Final answer
    x = 6,726,714.60

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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.