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Finding the Fourth Proportional to 5,818,293.72, 8,728,814.34 and 1,829,205.72

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Solution

The fourth proportional to 5,818,293.72, 8,728,814.34 and 1,829,205.72 is: 2,744,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818,293.72 : 8,728,814.34 = 1,829,205.72 : x
  2. Step 2: Convert to fraction form
    5,818,293.72/8,728,814.34 = 1,829,205.72/x
  3. Step 3: Cross multiply
    5,818,293.72x = 8,728,814.34 × 1,829,205.72
  4. Step 4: Simplify right side
    5,818,293.72x = 15,966,797,119,546.02
  5. Step 5: Solve for x
    x = 15,966,797,119,546.02/5,818,293.72
  6. Step 6: Final answer
    x = 2,744,240.47

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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.