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Finding the Fourth Proportional to 6,793,789.71, 9,375,687.66 and 3,893,740.23

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Solution

The fourth proportional to 6,793,789.71, 9,375,687.66 and 3,893,740.23 is: 5,373,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,793,789.71 : 9,375,687.66 = 3,893,740.23 : x
  2. Step 2: Convert to fraction form
    6,793,789.71/9,375,687.66 = 3,893,740.23/x
  3. Step 3: Cross multiply
    6,793,789.71x = 9,375,687.66 × 3,893,740.23
  4. Step 4: Simplify right side
    6,793,789.71x = 36,506,492,275,416.92
  5. Step 5: Solve for x
    x = 36,506,492,275,416.92/6,793,789.71
  6. Step 6: Final answer
    x = 5,373,509.31

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Why These Related Problems?

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