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Finding the Fourth Proportional to 5,326,028.20, 7,992,978.90 and 3,528,314.20

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Solution

The fourth proportional to 5,326,028.20, 7,992,978.90 and 3,528,314.20 is: 5,295,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326,028.20 : 7,992,978.90 = 3,528,314.20 : x
  2. Step 2: Convert to fraction form
    5,326,028.20/7,992,978.90 = 3,528,314.20/x
  3. Step 3: Cross multiply
    5,326,028.20x = 7,992,978.90 × 3,528,314.20
  4. Step 4: Simplify right side
    5,326,028.20x = 28,201,740,953,170.38
  5. Step 5: Solve for x
    x = 28,201,740,953,170.38/5,326,028.20
  6. Step 6: Final answer
    x = 5,295,079.16

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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.