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Finding the Fourth Proportional to 12,665,114, 18,997,671 and 5,573,402

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Solution

The fourth proportional to 12,665,114, 18,997,671 and 5,573,402 is: 8,360,103

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665,114 : 18,997,671 = 5,573,402 : x
  2. Step 2: Convert to fraction form
    12,665,114/18,997,671 = 5,573,402/x
  3. Step 3: Cross multiply
    12,665,114x = 18,997,671 × 5,573,402
  4. Step 4: Simplify right side
    12,665,114x = 105,881,657,546,742
  5. Step 5: Solve for x
    x = 105,881,657,546,742/12,665,114
  6. Step 6: Final answer
    x = 8,360,103

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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.