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Finding the Fourth Proportional to 5,842,950.61, 8,764,878.32 and 1,952,421.21

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Solution

The fourth proportional to 5,842,950.61, 8,764,878.32 and 1,952,421.21 is: 2,928,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,842,950.61 : 8,764,878.32 = 1,952,421.21 : x
  2. Step 2: Convert to fraction form
    5,842,950.61/8,764,878.32 = 1,952,421.21/x
  3. Step 3: Cross multiply
    5,842,950.61x = 8,764,878.32 × 1,952,421.21
  4. Step 4: Simplify right side
    5,842,950.61x = 17,112,734,291,212.78
  5. Step 5: Solve for x
    x = 17,112,734,291,212.78/5,842,950.61
  6. Step 6: Final answer
    x = 2,928,782.98

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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.