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Finding the Fourth Proportional to 21,991,034.04, 32,978,647.62 and 7,610,197.56

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Solution

The fourth proportional to 21,991,034.04, 32,978,647.62 and 7,610,197.56 is: 11,412,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,034.04 : 32,978,647.62 = 7,610,197.56 : x
  2. Step 2: Convert to fraction form
    21,991,034.04/32,978,647.62 = 7,610,197.56/x
  3. Step 3: Cross multiply
    21,991,034.04x = 32,978,647.62 × 7,610,197.56
  4. Step 4: Simplify right side
    21,991,034.04x = 250,974,023,649,823.81
  5. Step 5: Solve for x
    x = 250,974,023,649,823.81/21,991,034.04
  6. Step 6: Final answer
    x = 11,412,561.28

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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.