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Finding the Fourth Proportional to 7,193,455.31, 9,926,851.02 and 3,930,199.81

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Solution

The fourth proportional to 7,193,455.31, 9,926,851.02 and 3,930,199.81 is: 5,423,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193,455.31 : 9,926,851.02 = 3,930,199.81 : x
  2. Step 2: Convert to fraction form
    7,193,455.31/9,926,851.02 = 3,930,199.81/x
  3. Step 3: Cross multiply
    7,193,455.31x = 9,926,851.02 × 3,930,199.81
  4. Step 4: Simplify right side
    7,193,455.31x = 39,014,507,943,068.05
  5. Step 5: Solve for x
    x = 39,014,507,943,068.05/7,193,455.31
  6. Step 6: Final answer
    x = 5,423,611.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.