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Finding the Fourth Proportional to 18,100,053.96, 24,978,567.17 and 9,840,671.98

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Solution

The fourth proportional to 18,100,053.96, 24,978,567.17 and 9,840,671.98 is: 13,580,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100,053.96 : 24,978,567.17 = 9,840,671.98 : x
  2. Step 2: Convert to fraction form
    18,100,053.96/24,978,567.17 = 9,840,671.98/x
  3. Step 3: Cross multiply
    18,100,053.96x = 24,978,567.17 × 9,840,671.98
  4. Step 4: Simplify right side
    18,100,053.96x = 245,805,886,012,522.12
  5. Step 5: Solve for x
    x = 245,805,886,012,522.12/18,100,053.96
  6. Step 6: Final answer
    x = 13,580,395.21

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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.