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Finding the Fourth Proportional to 22,986,808.60, 34,480,212.90 and 18,507,832.60

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Solution

The fourth proportional to 22,986,808.60, 34,480,212.90 and 18,507,832.60 is: 27,761,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,986,808.60 : 34,480,212.90 = 18,507,832.60 : x
  2. Step 2: Convert to fraction form
    22,986,808.60/34,480,212.90 = 18,507,832.60/x
  3. Step 3: Cross multiply
    22,986,808.60x = 34,480,212.90 × 18,507,832.60
  4. Step 4: Simplify right side
    22,986,808.60x = 638,154,008,365,560.62
  5. Step 5: Solve for x
    x = 638,154,008,365,560.62/22,986,808.60
  6. Step 6: Final answer
    x = 27,761,748.90

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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.